SIAMDIVE
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How Cuttlefish Rewrite Their Skin in 50 Milliseconds
A pharaoh cuttlefish fires 200 chromatophores per square millimetre in under a second. Most divers on Thai reefs swim right past the fastest light show on the reef.
A Warship with 7 Battle Stars Now Grows Coral at 30 Metres
A WWII landing ship that stormed Okinawa and Inchon sits upright at 30m off Koh Chang — blanketed in coral and visited by whale sharks.
Where 553 Coral Species Fight for Space on One Wall
Misool holds more species per square metre than any reef on Earth. Here’s what that looks like at 20 metres — and how ranger patrols brought the sharks back.
Why Counting Butterflyfish Matters More Than Planting Coral
Reef Check trains recreational divers to run standardised reef surveys. The data shapes Thai marine park policy — any AOW diver can start in three days.
Surface Current Swept You Past the Boat — Now What?
In March 2026, two divers drifted ten nautical miles from their boat. A seven-step protocol and a 2,000 THB signaling kit separate a quick rescue from a twelve-hour ordeal.
Why Solo Divers Fly Past Bali and Book Thailand Instead
Thailand's hostel-dive-shop pipeline, $6 dorm beds, and zero-supplement liveaboards explain why 65% of Songkran bookings come from solo travelers.
How a 15-Baht O-Ring Ends a 4,000-Baht Dive Day
A cracked tank valve O-ring costs less than street food. Miss it, and your dive day is over. Five warning signs, the 90-second swap, and which ring to pick.
10× Deadlier Than a Rattlesnake and Zero Diver Deaths
The banded sea krait carries venom ten times more potent than a rattlesnake’s — yet no diver has ever died from its bite. The answer lies in its jaw.
Why Divers Pay $350 to See Almost No Fish at the Blue Hole
Almost no coral, limited fish, total darkness below 90 metres. Yet divers pay $350 to descend into Belize's Blue Hole. The answer hangs from the ceiling.
5 Months Empty: What Actually Grows Back on Similan's Reefs
Every May 15 the last boat leaves the Similans. When divers return five months later, the reefs look different. Here is what the data actually shows.
Why Your OW Buoyancy Skills Barely Count After Card Day
Your Open Water card proves you can equalise and breathe. It says nothing about hovering hands-free at 18 metres — that takes a progression most divers skip.
5 Narcosis Red Flags Your Buddy Misses at 30 Metres
Nitrogen narcosis hits at Chumphon's 36-metre floor. Five warning signs appear before a diver knows they're impaired — here's how to catch them.
80-Baht Pad Thai After a Night Dive — Only in Thailand
Night markets, 300-baht massages, and temple visits between dives — the non-diving hours are why Thailand keeps beating every other dive destination.
Same Dive, Different Deco: Why Your Computer Disagrees
Two divers share a 30-metre reef. One surfaces clean; the other owes a three-minute stop. The answer lives in the algorithm and two settings most divers never touch.
158 Sharks in One Bay: How Phi Phi's Blacktips Came Back
A July 2025 drone survey counted 158 blacktip reef sharks in Maya Bay. The story behind that number starts with a radical decision in 2018.
524 Km of Cave Behind a Pool Named Two Eyes
Two collapsed limestone pools north of Tulum open into one of the longest underwater cave systems ever mapped. Cavern diving here needs only an Open Water card.
Ghost Nets Kill for 600 Years After the Boat Leaves
A single lost net traps, kills, and re-traps marine life for centuries. Thailand's citizen scientists are fighting back — but the Gulf needs more hands underwater.
Could You Tow an Unconscious Diver 100 Metres Right Now?
Most rescue-certified divers haven't practised a surface tow since their course. Here are the red flags your skills have rusted and what to drill before your next trip.
Koh Talu's Rock Tunnel: 5 Islands for 650 Baht
A 69-rai island off Rayong hides a natural rock tunnel, Rayong's best coral, and a literary island from Sunthorn Phu — all on a single budget day trip from Ban Phe pier.
70 Dive Schools on One Island: What Keeps Thai Prices Honest
Koh Tao squeezes 70+ dive schools into 21 km², driving OW courses to 9,500 baht. How density keeps prices honest and standards high across Thailand.
28°C Above, 22°C Below: When 3mm Fails in Thailand
Andaman thermoclines drop from 29°C to 22°C without warning. At 20 metres, 3mm compresses to barely 1mm — the spec-driven case for when 5mm earns its weight.
The Alien Jaws Hiding in Every Crevice at Richelieu Rock
Giant morays carry a second set of jaws in their throat — the only vertebrate alive with this mechanism. Richelieu Rock hosts five species in one reef.
The Bombed Hold at 30 Metres Where 100 Motorbikes Wait
Two bombs split a British supply ship in 1941. Eighty-five years later, her cargo of motorcycles, trucks, and locomotives sits exactly where the crew left it.
Where Did Koh Tao's Whale Sharks Go After 1,409 Sightings?
Between 1991 and 2023, Koh Tao logged 1,409 whale shark sightings — nearly half of Thailand's total. Then the encounters dropped to near zero.
4 Breathing Mistakes That Empty Your Tank Before the Group
Beginners burn air at 20–30 L/min — double the rate of experienced divers. Four fixable habits close the gap, starting with a 12-second breath cycle.
Why Koh Rong Khon's 3-Knot Current Builds Better Reefs
Koh Rong Khon sits metres from the Hardeep wreck yet hosts one of Samae San's healthiest reefs. Strong tidal current, 25 m depth, and decades of Navy protection explain why.
Blacktip Sharks at 3 Metres: Koh Chan Samae San
Koh Chan hides blacktip reef sharks in knee-deep water, five clownfish species, and a whip coral forest at 16 metres — all inside a Navy-controlled marine park 45 minutes from Pattaya.
Hin Yai: The Gulf Pinnacle Where Sharks Patrol at 14 Metres
A submerged granite pinnacle off Samae San, Hin Yai rises from 32 metres to a coral-covered plateau at 14 m — drawing blacktip sharks, nudibranchs, and rare clownfish to one of the Gulf of Thailand's best offshore dives.
83,000 m² of Coral on a Navy-Locked Island: Koh Kham
Koh Kham packs 83,000 square metres of staghorn, table and brain coral into waters barely 3-15 metres deep — all under Royal Thai Navy guard in Sattahip's Samae San marine park.
Hin San Chalarm: Best Coral Pinnacle in Samae San
Hin San Chalarm -- Shark Fin Rock -- rises from the Gulf of Thailand near Samae San, harbouring 28-metre coral walls, resident sea turtles, and the clearest visibility in the Sattahip archipelago.
Koh Thalu: Swim-Through Caves in Chumphon's Pierced Island
A small limestone island in Mu Koh Chumphon National Park with a massive cavern punched clean through the rock — plus a heart-shaped cave, dense anemone colonies, and blacktip reef sharks on the deeper margins.
Where Mantas Queue at Koh Bon's 24-Metre Ridge
Koh Bon's submerged pinnacle hosts a manta cleaning station where reef wrasses service roughly 20 photo-identified rays each season -- here is how the site works and when to dive it.
Where Giant Trevally Hunt in Koh Tachai's Strongest Current
Koh Tachai Pinnacle sits in open blue between Similan and Surin, swept by currents that draw giant trevally, barracuda, and seasonal mantas to its granite dome.
Where Whale Sharks Surface Daily at Koh Ran Ped
Koh Ran Ped and Ran Kai in Chumphon draw whale sharks every spring to a plankton-rich channel just 18 metres deep — reachable by snorkelers on a 1,700 THB day trip.
The Coral Bommie at 12 Metres That Defines Similan Diving
A single coral bommie off Similan Island 7 hosts more species than some entire dive sites. East of Eden's gentle slope and hard coral gardens reward every certification level.
Hin Lak Ngam: Thailand's Black Coral Capital in Chumphon
Two rocky outcrops inside Mu Koh Chumphon National Park shelter Thailand's highest concentration of black coral — and virtually no other divers.
A Heart-Shaped Reef and a Royal Inscription at Koh Lang Ka Jiw
Koh Lang Ka Jiw hides a heart-shaped reef, a Rama V inscription, and hundreds of thousands of swiftlets inside Mu Koh Chumphon National Park.
Why Elephant Head's Granite Tunnels Demand a Second Dive
Elephant Head Rock hides a 40-metre granite labyrinth of swim-throughs between Similan Islands 7 and 8 — and one dive is never enough to see it all.
10 Reef Stations on a Rope: Koh Mattra's Underwater Trail
Thailand's first underwater nature study trail runs along Koh Mattra's eastern reef in Chumphon, with 10 signed stations from giant clams to sea fans at 1-8 metres depth.
The 5-Hour Trap: When Your Decongestant Quits Underwater
Pseudoephedrine clears your sinuses for descent — then its half-life expires at depth. The five risk factors behind reverse sinus squeeze.
The 4-Second Fix When Your BCD Won't Stop Filling
A stuck BCD inflator can launch you to the surface in seconds. Three faults cause it — salt, sand, and O-rings — and one disconnect ends it in four.
75 cm of Fury: What Triggers a Titan Triggerfish to Charge
Teeth built to crack urchins, an inverted-cone territory that reaches the surface, and a charge with zero warning — why Thailand's biggest triggerfish earns its fearsome reputation.
The Lake Where 5 Million Jellyfish Forgot How to Sting
Palau's Jellyfish Lake holds millions of golden jellyfish that evolved to be harmless. Here is what 12,000 years of isolation created and how to visit.
10,000 Coral Fragments on a PVC Rack — Why They Survived
Chanthaburi’s low-tech PVC nursery kept 95% of coral fragments alive after the Gulf’s worst bleaching. Species selection made the difference.
25 Metres, Zero Bar, 4 Seconds to Decide
Insufficient gas triggers 41% of dive fatalities. Four risk factors at depth decide which emergency ascent gives the best chance of surfacing safely.
That Hard Pull at 30 Metres Is Your First Stage Talking
When your regulator fights you at depth, intermediate pressure tells the story. A five-minute pre-dive IP check and annual service are all it takes.
The Slug That Steals Weapons: Koh Tao's Nudibranch Obsession
Koh Tao hosts 146 nudibranch species — slugs that steal stinging cells, sequester poison, and defy every rule about defenceless invertebrates. Here is what lives on the reef you keep swimming past.
5 Depths Where Hin Daeng's Red Wall Changes Completely
From snorkelling reef to 60-metre drop-off, each depth band on Hin Daeng's crimson wall delivers a different dive and different animals. Here is what to expect at every level.
Why Divers Fly to Iceland for a 35-Minute Freshwater Dive
Silfra Fissure offers 100-metre visibility in 2°C glacial water filtered through lava for a century — the only dive on Earth between two tectonic plates.
Why 45% of Gulf Corals Turned White — and What Divers See Now
Nearly half of Gulf of Thailand coral colonies bleached in 2024. SST data, island-by-island damage, DMCR recovery rates, and what divers find on the reef now.
5 Nitrox Mistakes That Turn Extra Bottom Time Into Real Risk
EAN32 extends your no-deco limits — but only if you avoid these five errors that trip up newly certified nitrox divers on Thai dive boats.
1,500 Newtons in 80 Microseconds: Thailand's Mantis Shrimp
A 10 cm crustacean delivers the ocean's fastest punch — and thrives in Andaman rubble zones most divers swim right past.
How to Time Richelieu Rock for Whale Sharks Before May 15
Richelieu Rock's purple horseshoe pinnacle hosts whale sharks from February to April — with the park closing May 15, here's what the final weeks offer.
48 Hours Post-Dive: The Ear Injury Nobody Expects
Middle ear barotrauma often shows up days after the dive. How to spot delayed ear squeeze, when to ground yourself, and where to find help in Thailand.
Boonsung at 18 Metres: The Reef a Tsunami Built
A tin dredger sunk in 1984, split into five pieces by the 2004 tsunami, now hosts one of Khao Lak's densest reefs. Here is what grew back.
Night or Deep First? Thailand's Reefs Already Chose for You
Thailand's most popular reefs peak between 10 and 25 metres — which makes one specialty far more useful than the other for your first card.
Ghost Pipefish at 16 Metres: Koh Doc Mai's Macro Wall
Koh Doc Mai's vertical limestone drops straight to 30 metres — and every crack hides a nudibranch, seahorse, or ghost pipefish. A macro photographer's field guide to Phuket's only wall dive.
Every Khao Lak Dive Boat Leaves the Same Pier Until May 15
Thap Lamu is Khao Lak's only dive pier, and it empties for 153 days every year. A 2026 guide to departures, day trips, and what actually works May–October.
March in Thailand: Why the Andaman Always Wins the Dive Trip
Thailand has two seas. In March, only one delivers peak visibility, whale shark odds, and liveaboard access. Here's why seasoned divers always pick the Andaman.
We Did the Math: Thailand Costs a Third of the Maldives and Matches the Red Sea's Best
We priced a week of diving in Thailand, the Maldives, Egypt, the Philippines, and the Caribbean. Here's the real per-dive cost — and why Thailand wins for most divers.
One Country, Every Type of Dive: Why Thailand Is the Most Underrated Bucket-List Destination
Whale sharks, manta rays, macro critters, wrecks, pinnacles, drift, coral gardens — Thailand delivers every style of diving within one country. Here's why that matters.
Never Dived Before? Here's Why Thailand Should Be Your First Ever Dive Trip
Warm 29°C water, 30m visibility, the world's cheapest PADI courses, and reefs built for beginners. Here's why Thailand is the single best place on Earth to start diving.
Surface Intervals: The Boring Part of Diving That Keeps You Alive
Everything you need to know about surface intervals — why nitrogen off-gassing matters, how long to wait between dives, what to do (and avoid) during your SI, and how dive computers calculate it all for you.
How to Not Throw Up on the Dive Boat: A Practical Seasickness Guide
Seasickness ruins more dive trips than equipment failures. Learn exactly how to prevent and manage nausea on dive boats — from the right medications and natural remedies to where to sit, what to eat, and what to do if you're already green.
Fried on the Dive Boat: The Complete Sun Protection Guide Every Diver Needs
Scuba divers face extreme UV exposure — hours on open boat decks, water reflecting 25-40% more UV rays, and wet skin that burns faster. Learn about reef-safe sunscreen, UPF rash guards, and essential gear to protect your skin without harming marine life.
What Your Body Needs in the 24 Hours After a Dive
Your dive may be over, but your body is still working hard. From rehydration and nutrition to no-fly rules and DCS warning signs, here's your complete post-dive recovery checklist.
What to Eat Before Diving (And the Meal That Could Ruin It)
Your pre-dive meal matters more than you think. Learn the best foods, hydration tips, and what to avoid before scuba diving to stay safe and comfortable underwater.
BCD Care: The Bladder Flush Most Divers Skip (And Pay For Later)
Learn the essential BCD maintenance steps most divers overlook — from proper bladder flushing to dump valve care, storage tips, and when it's time to replace your buoyancy control device.
Storing Your Dive Gear for Months? The Checklist That Prevents Expensive Surprises
Seasonal diver? Heading home after a trip? Follow this item-by-item storage checklist so your regulator, BCD, wetsuit, and tank survive months of downtime.
The 15-Minute Post-Dive Rinse That Doubles Your Gear's Life
Master the complete 15-minute post-dive rinse protocol for every piece of scuba equipment. From regulator dust caps to BCD bladder flushes, this step-by-step routine prevents corrosion and extends gear life.
Your Wetsuit Stinks: The Complete Care Guide That Actually Works
From rinsing after every dive to patching neoprene tears, this no-nonsense guide covers everything you need to keep your wetsuit fresh, flexible, and lasting years longer.
Why Your Dive Mask Fogs (And 4 Fixes That Actually Work)
Learn why dive masks fog up and discover proven anti-fog methods, from new mask prep to proper storage. Plus expert tips on cleaning, strap replacement, and when to retire your mask.
I'm Afraid of the Ocean — Can I Still Learn to Dive?
Anxious about scuba diving? You are not alone. Learn how fear, claustrophobia and panic are gently managed by patient instructors, breathing techniques and Discover Scuba trials.
The 30-Day Plan to Not Embarrass Yourself on Your First Dive
Booked your Open Water course? Here's the exact 30-day prep plan divers wish they had: fitness, ear training, eLearning, packing, and what NOT to do.
Can You Actually Learn to Dive? The Medical Checklist No One Explains
The honest guide to scuba medical forms: hard disqualifiers, conditions that need a doctor's sign-off, the real swim test, and what to do if you answered YES.
What an Open Water Course Actually Costs (Including the Fees They Don't Mention)
The honest breakdown of PADI Open Water course costs in Thailand vs USA, EU, Australia — including cert card, eLearning codes, marine park fees and the hidden extras nobody warns you about.
PADI vs SSI vs NAUI vs RAID: Does the Agency on Your Card Actually Matter?
A diver's honest, no-marketing breakdown of the four big certification agencies — where they differ, where they don't, and what to actually look for.
7 Phuket Dive Sites That Prove You Don't Need a Liveaboard
Leopard sharks, a 85m wreck, and technicolor limestone pinnacles—all under 2 hours from Chalong Pier. Here's every day-trip dive site around Phuket.
Phuket vs Koh Tao vs Khao Lak: Which Thai Dive Base Fits You?
Honest 2026 comparison of Thailand's three big dive hubs — real prices, boat times, dive seasons, and a pick-yours matrix. No hype, no bias.
The Phuket Diving Calendar: When to Actually Book
Honest month-by-month guide to diving Phuket and the Similan Islands: visibility, water temp, marine life, crowds and when to book your trip.
What You Actually See Diving in Phuket (Not the Brochure Version)
Honest field log of Phuket dive-day marine life: leopard sharks, turtles, seahorses, frogfish — with real odds, not fantasy marketing promises.
Your First Dive in Phuket: What No One Tells You
Never dived before? Here's the honest lowdown on Discover Scuba in Phuket — what day 1 really looks like, what to skip, and how to pick a shop that won't scare you.
How Scuba Diving Rewires Your Brain (And Why You Can't Stop)
Discover the science behind why scuba diving reduces anxiety, builds unshakable confidence, and creates a community you never want to leave.
Thailand vs the World: Where Should You Get Scuba Certified?
Compare scuba certification costs, conditions, and quality across Thailand, Honduras, Philippines, and more — and discover why Koh Tao certifies more divers than anywhere on Earth.
Why Learn Scuba Diving: What the Bucket List Version Doesn't Tell You
Scuba diving stays on bucket lists for years. Here's what the course actually costs, what you see down there, and why Thailand makes it easy to start.
7 Mistakes That Ruin Thailand Liveaboard Trips (and How to Dodge Them)
Wrong boat size, wrong month, hidden fees — the mistakes that wreck Thailand liveaboard trips happen before you leave the pier. Here's how to avoid them.
Thailand Liveaboard Routes Compared: Which One Fits Your Diving
Northern Andaman, southern Andaman, or Mergui? The three Thailand liveaboard routes dive completely differently — here's how to pick the right one.
Similan Liveaboard: What 4 Days and 14 Dives Actually Cost
The real math on a Similan Islands liveaboard — 14 dives across 4 days, 32,000-60,000 THB, and when Richelieu Rock actually delivers mantas and whale sharks.
Diving Thailand Month by Month: The Two-Coast Strategy That Beats the Monsoon
Thailand has two dive seasons on opposite coasts. Here's the month-by-month guide to picking the right side so monsoon never ruins your trip.
Bida Nok: Where Leopard Sharks Sleep at Your Feet
Bida Nok near Koh Phi Phi delivers leopard sharks, turtles, and vibrant coral walls on every dive. Here's exactly what to expect at 0-30 meters.
Maya Bay Reopened — But the Rules Have Changed
Maya Bay closed for 4 years and reopened with strict new rules. Here's what divers and snorkelers can actually do there now, plus the best nearby dive sites.
Palong Wall at Sunset: Phi Phi's Most Underrated Dive
Palong Wall on Phi Phi Leh delivers healthy soft corals, moray eels, and the best sunset diving light in the Andaman Sea. Here's what you need to know.
Racha Noi: Phuket's Offshore Island Where Manta Rays Show Up Unannounced
Racha Noi offers Phuket's clearest water, manta ray encounters, and uncrowded dive sites. A 40-minute speedboat ride from Chalong to a different world.
The King Cruiser Wreck: How a Sinking Ferry Became Phuket's Best Artificial Reef
The King Cruiser sank in 1997 after hitting Anemone Reef. Today this 85-meter wreck at 18-33m depth teems with barracuda, lionfish, and soft coral.
Shark Point Phuket: Where Leopard Sharks Sleep Among Purple Coral
Shark Point (Hin Musang) is Phuket's top marine sanctuary with leopard sharks, purple soft coral, and 30-meter visibility from November to April.
Pattaya's Sunken Warships: How Navy Wrecks Became Thriving Coral Reefs
Decommissioned Royal Thai Navy ships off Pattaya are now covered in coral and teeming with marine life. Here's what you'll find 18–30 meters below the surface.
Best Spots for One Day Dive Trips in Thailand
From Koh Tao's budget-friendly reefs to Koh Lanta's pristine waters, here are Thailand's top destinations for a single day of scuba diving.
How to Find and Book Day Dive Trips in Thailand
A practical guide to finding, comparing, and booking one day scuba diving trips across Thailand — from choosing operators to avoiding costly mistakes.
Octopus Intelligence: The Smartest Creature Underwater
Octopuses have 500 million neurons, use tools, recognize faces, and change color in milliseconds. Here is why divers never forget their first encounter.
Regulator Care and Setup: The Complete Guide for Divers
Your regulator keeps you alive underwater. Learn how to set it up, maintain it between dives, and know when it needs professional servicing.
BCD Basics: Choosing, Fitting, and Using Your Buoyancy Device
Everything divers need to know about BCDs — from jacket vs back-inflate vs wing, to getting the right fit, underwater technique, and long-term care.
Dive Computer Essentials: Read and Trust Your Wrist
Learn how dive computers track nitrogen, calculate no-deco limits, and keep you safe underwater. A practical guide to reading displays and choosing the right model.
Whale Shark Encounters: What Every Diver Should Know
Whale shark behavior, encounter ethics, and Thailand's best sites from Richelieu Rock to Sail Rock — a factual guide for responsible divers.
Preventing Diving Emergencies: A Practical Safety Guide
Learn to prevent the most common diving emergencies before they happen. From pre-dive checks to emergency response, stay safe on every dive.
Air Consumption in Scuba Diving: How to Make Every Tank Last
Learn how to reduce your air consumption and extend dive time. Practical tips on breathing, buoyancy, trim, and gas management for every level.
Underwater Hand Signals: The Complete Diver's Guide
Master the essential underwater hand signals every diver needs. From OK to emergency signals, learn to communicate clearly on every dive.
Diving in Currents: How to Stay Safe and Enjoy the Ride
Learn to read, manage, and enjoy underwater currents. From drift diving to handling downcurrents, this guide covers what every diver needs to know.
Ear Equalization for Divers: Techniques That Actually Work
Master Valsalva, Frenzel, and Toynbee methods to equalize your ears safely. Stop ear pain on every dive with these proven techniques.
King Kong Pinnacle Koh Tao Diving Guide: The Island's Quietest Pinnacle
King Kong Pinnacle south of Koh Tao is the island's least-dived pinnacle — healthy reef, relaxed fish, and empty water for divers who want peace.
The Junkyard Koh Tao Diving Guide: The Island's Quirkiest Artificial Reef
The Junkyard off Mae Haad is Koh Tao's artificial reef built from recycled trash — toilets, bikes, and a thriving coral nursery with resident batfish and lionfish.
Tanote Bay Koh Tao Guide: Snorkeling, Diving, and Cliff Jumping
Tanote Bay on Koh Tao's east coast offers fringing reefs, a cliff jumping rock, and a sunken catamaran — the island's best all-in-one shore day.
Aow Leuk Koh Tao Diving Guide: The Island's Best Beginner Bay
Aow Leuk on Koh Tao's southeast coast offers shallow reefs, juvenile blacktip sharks, and easy shore diving — the perfect beginner bay on the island.
Mango Bay Koh Tao Guide: The Island's Best Beginner Dive and Snorkel Site
Mango Bay on Koh Tao's north coast is the island's best beginner dive site and snorkel spot — calm water, vibrant reefs, and year-round conditions.
Hin Wong Pinnacle Koh Tao Diving Guide: The East Coast's Best Kept Secret
Hin Wong Pinnacle off Koh Tao's east coast has more fan corals than any site on the island, plus rich fish life and fewer crowds — here's everything divers need.
Green Rock Koh Tao Diving Guide: The Island's Best Swim-Through Site
Green Rock off Koh Nang Yuan offers Koh Tao's best boulder maze, The Chimney swim-through, dense macro life and advanced training — here's everything divers need.
Shark Island Koh Tao Diving Guide: The Gulf's Best Drift Site
Shark Island off Koh Tao's southeast tip offers advanced drift diving, purple coral walls, and occasional blacktip shark sightings — here's everything you need.
HTMS Sattakut Wreck Koh Tao Diving Guide: The Island's Signature Dive
HTMS Sattakut is Koh Tao's largest wreck, a 48-meter ex-navy landing craft sunk in 2011. Deck at 18 m, stern at 30 m — here's how to dive it right.
Japanese Gardens Koh Tao Diving Guide: The Island's Easiest Great Reef
Japanese Gardens is Koh Tao's most-used training site, but it's more than that. Shallow coral, hidden swim-throughs, and the island's most reliable dive.
White Rock Koh Tao Diving Guide: The Island's Best Night Dive
White Rock (Hin Khao) is Koh Tao's most-used dive site for a reason. Staghorn gardens, turtles, and the island's top night dive — here's how to dive it.
Southwest Pinnacle Koh Tao Diving Guide: The Gulf's Best Big-Fish Site
Southwest Pinnacle is Koh Tao's seven-pinnacle offshore site. Whale sharks, dogtooth tuna, and giant groupers — here's how to dive it and when.
Koh Ngam Noi Diving Guide: Chumphon's Smaller Sister Island
Koh Ngam Noi is the shallow Chumphon reef where Open Water divers actually relax. Coral gardens, the HTMS Prab wreck nearby, and barely any crowds.
HTMS Prab 741 Wreck Diving Guide: Chumphon's Quiet Artificial Reef
HTMS Prab 741 is the small WWII landing craft sunk south of Koh Ngam Noi in 2011. Open Water depth, intact hull, and almost no other divers — here's how to dive it.
Triangle Pinnacle Diving Guide: The Gulf's Quietest Granite Site
Hin Sam Liam is the Gulf of Thailand pinnacle that does not show up on the standard Koh Tao board. Big groupers, anemone gardens, and almost no crowds.
Hin Phae Diving Guide: Koh Tao's Quiet Granite Pinnacle
Hin Phae is the small advanced pinnacle 30 m from the Sattakut wreck. Big groupers, healthy coral, and almost no other divers — here's how to dive it.
Koh Ngam Yai Diving Guide: Chumphon's Wild Granite Island
Koh Ngam Yai is the quiet Chumphon dive site Koh Tao crowds never reach. Anemone fields, whale shark odds, and small boats — here's how to dive it.
How to Start Scuba Diving: A Complete Beginner's Guide
Ready to try scuba diving but don't know where to begin? This step-by-step guide covers everything from choosing a course to your first ocean dive.
Why Learn Scuba Diving? 8 Reasons to Get Certified
Not sure if scuba diving is for you? Here are 8 real reasons why getting certified changes how you travel, stay fit, and see the world.
Koh Ha Yai Diving Guide: The Cathedral Cave and Beyond
Home to the famous Cathedral cave and chimney swim-through, Koh Ha Yai delivers some of Koh Lanta's most memorable dives. Complete guide inside.
Hin Sawaeng Diving Guide: Koh Lipe's Wall and Pinnacle Gem
Steep walls, dramatic drop-offs, and rich marine life make Hin Sawaeng one of Koh Lipe's most rewarding dive sites. Complete guide with tips and conditions.
8 Mile Rock Diving Guide: Koh Lipe's Deep Pinnacle
A remote pinnacle 8 miles offshore with big pelagics, reef sharks, and untouched corals. Your guide to Koh Lipe's most rewarding advanced dive site.
Stonehenge Dive Site Koh Lipe: Boulders, Currents and Big Fish
Massive granite boulders, strong currents pulling in pelagics, and healthy corals. Everything you need to know about diving Stonehenge off Koh Lipe.
Koh Rok Diving Guide: Trang's Pristine Coral Paradise
Explore Koh Rok's crystal-clear waters, healthy coral reefs, and rich marine life. Your complete guide to diving Thailand's best-kept Andaman secret.
PADI Open Water Course: What It Involves Day by Day
A day-by-day breakdown of the PADI Open Water course — theory, pool sessions, open water dives, required skills, and what to expect at each stage.
First Liveaboard Trip in Thailand: What to Actually Expect
Your first Thai liveaboard trip means early wake-ups, compact cabins, 3-5 dives daily, and a routine that clicks by day two. Here's the honest version.
Koh Haa Diving Guide: Five Islands of Crystal Clear Water
Dive Koh Haa's lagoon, Cathedral cave, and deep pinnacles from Koh Lanta. All-level sites with 20-30m visibility and rich marine life.
Sea Turtles in Thailand: Species Guide for Scuba Divers
Meet hawksbill, green, and olive ridley turtles at Koh Tao, Similan Islands, and more. Species ID, dive sites, conservation, and photo tips.
Should You Get Scuba Certified? An Honest Answer
Real costs, time commitments, physical requirements, and risks of scuba certification — plus a smart way to test the waters before you invest.
Whale Sharks in Thailand: Where and When to See Them
Find whale sharks in Thailand at Chumphon Pinnacle, Richelieu Rock and more. Season guide, dive costs, and responsible encounter tips for 2026.
Koh Lipe Diving Guide: Thailand's Hidden Andaman Gem
Explore Koh Lipe's top dive sites from Jabang's soft coral gardens to 8 Mile Rock's granite pinnacles. Season, costs, and how to get there.
Why Liveaboards Beat Day Trips for Diving in Thailand
Liveaboards offer 3-4 dives daily, access to remote sites like Richelieu Rock, and all-inclusive comfort that day trips simply cannot match.
Andaman Sea vs Gulf of Thailand: Picking Your Dive Region
Compare Thailand's two dive coasts side by side — marine life, visibility, seasons, costs, and which region fits your experience level.
How to Choose the Right Liveaboard Trip in Thailand
A practical guide to picking the best Thailand liveaboard for your budget, experience level, and dream dive sites from Similan to Richelieu Rock.
Marine Life Etiquette: A Diver's Guide to Not Being That Person
No touching, no chasing, reef-safe sunscreen and the ethics of underwater photography — the etiquette every diver owes the ocean.
10 Things Every Certified Diver Should Know (But Open Water Didn't Teach)
Gas management, dive planning, SMBs, owning your gear, DAN insurance and the right to call a dive — the practical skills certified divers actually need.
How to Actually Enjoy Scuba Diving: A Comfort & Confidence Guide
Buoyancy, breathing, weighting, trim and the mental game — the practical skills that turn diving from a workout into a 60-minute float. No fluff.
Scuba Diving Safety: A Beginner's Guide to Diving Safe & Smart
The five-minute pre-dive check, three golden rules, buddy system and emergency drills every diver must know. Real safety advice without the fluff.
Mergui Archipelago Liveaboard from Thailand: The Untouched Andaman
The Mergui Archipelago is Asia's last frontier liveaboard — 800 islands, manta rays, whale sharks, almost no other boats. Everything you need to plan a trip from Ranong.
Hin Daeng & Hin Muang Liveaboard: Thailand's Wildest Walls
Hin Daeng and Hin Muang are Thailand's deepest soft coral walls — manta rays, whale sharks, and serious current. Here's how to dive them by liveaboard.
Samaesan Wreck Diving: Sattahip's Quieter Alternative to Pattaya
HTMS Hardeep, drift sites at Koh Chuang and Koh Chan, and a 2-hour drive from Bangkok. The honest guide to diving Samaesan and Sattahip.
Pattaya Diving from Bangkok: Wrecks & Reefs Just 2 Hours Away
Reefs around Koh Larn, two penetrable navy wrecks, and a 2-hour drive from Sukhumvit. Here's how Pattaya works as a Bangkok day-trip dive plan.
Safe Ascent Rate: The Diving Safety Rule Most Divers Break
The 9 m/min ascent rate is the most important rule in recreational diving safety — and the one most divers quietly break every dive. Here's how to fix it.
The Pre-Dive Buddy Check Most Scuba Divers Skip
Half of all scuba accidents could be prevented by a five-minute BWRAF buddy check. Here's why experienced divers skip it and how to do it right.
Losin : Thailand's Best-Kept Diving Secret in the Deep Gulf
Losin is a remote liveaboard-only dive site off Pattani famous for manta rays, whale sharks, and bull sharks during March-May.
Chumphon Pinnacle Diving Guide: Gulf of Thailand's Granite Tower
A complete guide to diving Chumphon Pinnacle off Koh Tao — whale sharks, schools of trevally, the swim-through, depths, currents, and how to book.
What Makes Thailand Special for Scuba Divers
Two coasts, year-round warm water, world-class sites you can actually reach, and prices that don't punish you. Here's what really sets Thailand apart for divers.
TEKAsia 2026: Asia's First Technical Diving Conference
TEKAsia 2026 debuts at ADEX Singapore this April 10-12, bringing 30+ world-class speakers and hands-on workshops for technical divers across Asia.
Similan Islands: Last Weeks to Dive Before the 2026 Season Closes
The Similan Islands close in mid-May 2026. Here's why the final weeks offer the best diving conditions and how to book a last-minute liveaboard trip.
7 Reasons Thailand Is the Best Place to Scuba Dive
Two coastlines, warm water year-round, whale sharks for the price of a nice dinner — here's why more divers choose Thailand than almost anywhere else on earth.
Sail Rock Diving Guide: The Gulf of Thailand's Best Pinnacle
Dive Sail Rock (Hin Bai) — the Gulf of Thailand's premier pinnacle with its famous chimney swim-through, whale shark sightings, and massive barracuda schools.
Similan Islands Diving Guide: Thailand's Underwater Paradise
Everything you need to know about diving the Similan Islands — best dive sites, marine life, seasons, liveaboard tips, and how to get there from Khao Lak.
Cleaning Stations: The Secret Social Hubs of the Reef
Discover cleaning stations — where predators open their mouths for tiny fish and shrimp to crawl inside. The most fascinating animal behavior you can witness on any dive.
Nudibranchs: 10 Mind-Blowing Facts About the Ocean's Strangest Creatures
They steal weapons from their prey, glow in the dark, and breathe through their backs. Here are 10 facts about nudibranchs that will change how you look at every reef.
Safe Diving Techniques: 8 Skills That Prevent Accidents
Master the 8 essential safe diving techniques every diver must know — from buoyancy control and air management to emergency ascents and SMB deployment.
Nitrox Diving Guide: Benefits, Risks & MOD Explained
Master Enriched Air Nitrox diving — understand MOD calculations, oxygen toxicity risks, EAN32 vs EAN36, and how Nitrox extends your bottom time safely.
Hin Daeng & Hin Muang Diving Guide: Thailand's Best Pinnacles
Discover Hin Daeng and Hin Muang, Thailand's most thrilling deep-water pinnacles off Koh Lanta with manta rays, whale sharks, and 70m walls.
Richelieu Rock Diving Guide: Best Site in Thailand 2025
Discover Richelieu Rock, Thailand's crown jewel of scuba diving. Whale sharks, manta rays, seahorses and world-class biodiversity await in the Andaman Sea.
Saving Racha Yai: Inside Thailand's 3D-Printed Coral Reef Project
Discover how 3D-printed artificial reefs are reviving marine life and transforming Racha Yai into a thriving center for conservation and scuba diving.
Discover the Avelo Scuba System: Revolutionizing Diving in Thailand
The Avelo Scuba System redefines buoyancy control with its innovative Hydrotank, offering lighter gear, stable neutrality, and longer dives perfect for Thailand's vibrant dive sites.
Explore 9 Eco Centers
Discover 9 PADI Eco Centers in Thailand certified by UN Reef-World Green Fins for responsible scuba diving. Your ultimate guide by Siam Dive Center to sustainable dive sites.
HTMS Chang Koh Chang
Dive into the HTMS Chang wreck.