Dive Tips

Your one-stop splash zone for dive tips, epic travel inspo, wild stories & gear breakdowns from the community that lives underwater more than on land.

Articles

October 22, 2026

Raja Ampat Liveaboard Guide: How to Plan the Dive Trip of a Lifetime

Best Dive Sites in Koh Tao: Your Complete Guide to Diving Thailand's Turtle Island

Koh Tao has over 25 dive sites scattered around its coastline and offshore waters. That's a lot of choice, and if you only have a few days in the water, knowing which sites are worth your air and which ones suit your level makes all the difference. This is the no-fluff breakdown. Every major site, what you'll actually see there, how challenging it is, and who it's best for. Quick Orientation Koh Tao's dive sites fall into two broad categories: the sheltered bays and shallow reefs close to the island's coastline, mostly suited to beginners and Open Water training; and the deeper offshore pinnacles, which is where the serious action happens. Most dive boats reach the coastal sites in 10 to 15 minutes, while the outlying pinnacles like Chumphon and Sail Rock take considerably longer. Water temperature sits at 28 to 30°C for most of the year. Visibility ranges from 10 to 25 metres depending on season and site. The best overall diving season runs from February to September. Keen to see our Koh Tao Dives? Check them out here! The Offshore Pinnacles Chumphon Pinnacle Depth: 14 to 40m | Level: Advanced Open Water recommended | Travel time: about 25 min northwest If you only do one dive at Koh Tao, most experienced divers would point you here. Chumphon Pinnacle is a cluster of granite pinnacles rising from the seafloor, attracting some of the biggest concentrations of marine life around the island. Schools of chevron barracuda, giant grouper, and trevally circulate the structure. Whale sharks are sighted here more than at any other Koh Tao site. Still seasonal and never guaranteed, but if it's going to happen anywhere in the Gulf of Thailand, it's here. The deeper sections need solid buoyancy and some current experience, but the upper reaches are accessible to divers with reasonable open water time under their belts. Worth knowing: the thermoclines dropping through the water column are a cool sensory experience even on dives where the big stuff doesn't show up. Sail Rock Depth: 5 to 40m | Level: All levels, best enjoyed by Advanced | Travel time: about 60 to 90 minutes from Koh Tao Sail Rock is widely regarded as the best single dive site in the Gulf of Thailand, and it's not hard to see why. A granite spire rises from the seafloor to the surface, with a unique vertical chimney running through the rock that divers can drop through from around 5 metres down to 18 metres. It's one of those dives people talk about for weeks afterwards. The site is exposed enough to attract serious pelagic life, including barracuda, kingfish, trevally, and regular whale shark sightings during the right season, while the shallower sections around the rock are great for reef fish and coral. Current can pick up so newer divers should pair with an experienced guide who knows the site well. Dropping through The Chimney is the kind of dive moment that turns people into lifers. Southwest Pinnacle Depth: 6 to 30m | Level: Intermediate to Advanced | Travel time: about 20 min southwest Arguably Koh Tao's most underrated dive site. Southwest Pinnacle is a large submerged rock with dramatic swim-throughs, overhangs draped in soft coral, and a reliably healthy resident marine population. Leopard sharks rest on the sandy bottom. Large grouper lurk in the overhangs. Batfish and snappers school mid-water. It sees fewer boats than Chumphon or Sail Rock, which means you get more of it to yourself. Currents can be strong, particularly on the deeper sections, but the structure is large enough that guides can choose sheltered sections when conditions call for it. Keep your eyes on the sandy plateau around 20 metres. That's where leopard sharks and sleeping nurse sharks are regularly found. The Coastal Reefs White Rock Depth: 5 to 25m | Level: All levels | Travel time: about 10 min White Rock is Koh Tao's most popular all-round dive site, the one that suits the widest range of divers and conditions. Two large granite boulders covered in hard coral and marine growth provide the structure, with swim-throughs, overhangs, and a healthy resident population of reef fish, moray eels, and the occasional hawksbill turtle. It's also one of the best night dive sites around Koh Tao. After dark the site transforms completely. Lionfish emerge from crevices, reef sharks patrol the shallower sections, and cuttlefish hunting in the torchlight put on a genuine show. If you haven't dived White Rock at night, put it on the list. Japanese Gardens Depth: 4 to 14m | Level: Beginners and Open Water training | Travel time: about 15 min near Koh Nang Yuan The name fits. Japanese Gardens is a beautifully landscaped shallow reef with extraordinary coral variety, probably the widest diversity of hard and soft corals at any single site around Koh Tao. It's calm, colourful, and unhurried, making it the go-to for Open Water training dives and anyone who wants to take their time and actually look at things. Don't write it off as a beginner-only site. Serious macro photographers return here repeatedly for the nudibranchs, shrimp, and tiny reef creatures hiding in the coral heads. There's a lot more going on here than the depth suggests. Twins Depth: 6 to 18m | Level: Beginners to Intermediate | Travel time: about 5 min from Sairee Beach Two large coral bommies sitting in open water a short distance from the main beach. Twins is one of the most reliably good dives for newer divers. Visibility is usually excellent, conditions are manageable, and the marine life is active and varied. Blue-spotted stingrays rest in the sand, turtles cruise through regularly, and the schools of fusiliers and snappers circling the bommies give the site a lively feel. It's a popular second dive after Chumphon or Sail Rock too, giving the group a comfortable, relaxed dive to close out the day. Aow Leuk Depth: 5 to 18m | Level: Beginners | Travel time: about 15 min east coast A sheltered bay on Koh Tao's east coast with a gently sloping coral reef, sandy patches, and calm conditions that make it ideal for people on their first few dives. Turtle sightings are reliable here. The bay seems to have a resident population that divers encounter with pleasing regularity. It also happens to be one of the better snorkelling spots if you have non-diving travel companions along for the trip. Mango Bay Depth: 2 to 15m | Level: Complete beginners and Discover Scuba | Travel time: about 15 min north coast Mango Bay is the classic introductory dive site on Koh Tao. Shallow, sheltered, with sandy entry points and a diverse coral reef that starts almost at the surface. It's where many people take their literal first breaths underwater, calm enough to feel safe and interesting enough to immediately understand why people love this sport. Nothing specific to chase here. Just look around and take it in. Shark Island Depth: 5 to 22m | Level: Beginner to Intermediate | Travel time: about 20 min southeast of Koh Tao Don't be misled by the name. The sharks here are nurse sharks and occasional reef sharks, not the kind that warrant a dramatic naming convention. What Shark Island actually delivers is a rocky reef structure with impressive swim-throughs, colourful soft coral, and a beautiful boulder-strewn topography that rewards exploration. Leopard sharks are regularly spotted resting on the sandy patches, and the soft coral growth on the southwest corner is particularly lush. The HTMS Sattakut Wreck Depth: 15 to 32m | Level: Advanced Open Water recommended A former US Navy vessel that served with the Royal Thai Navy for decades before being deliberately sunk in June 2011 as an artificial reef off the west coast of Koh Tao. It's now thoroughly colonised by corals and home to a significant resident fish population. Batfish school around the superstructure. Lionfish lurk in the hull openings. The wreck sits upright and is large enough to take multiple dives to explore properly. It won't compete with the great wrecks of the world, but for Koh Tao it's a genuinely interesting dive with good marine life and real history behind it. The upper deck at around 20 metres is usually where visibility is best. Which Site is Right for You? First time / Discover Scuba: Mango Bay, Japanese Gardens, Aow Leuk Open Water training: Japanese Gardens, Twins, Aow Leuk Newly certified, building confidence: White Rock, Twins, Shark Island Intermediate, want more: Southwest Pinnacle, Chumphon Pinnacle, HTMS Sattakut Advanced, want the best: Chumphon Pinnacle, Sail Rock, Southwest Pinnacle Underwater photographers: Japanese Gardens for macro, Chumphon Pinnacle for wide angle, Southwest Pinnacle for soft coral Night divers: White Rock, Twins Ready to book a dive in Koh Tao, Thailand , let's do it! Practical Info Getting to Koh Tao: Ferry from Chumphon (1.5 to 2 hrs) or Surat Thani (6 hrs night ferry or 3 hrs high-speed). Many divers fly to Koh Samui and connect by ferry, around 1.5 hours. Dive costs: Fun dives run from around 800 to 1,200 baht per dive (roughly AUD $32 to $48). Most operators run two-tank morning trips. Multi-dive packages bring the per-dive cost down noticeably. Best season: February to September for the Gulf of Thailand. October and November can bring rougher conditions and reduced visibility. Plan your Koh Tao dives; Browse trips, courses, and packages at Dive Bookings — Thailand .

Learn more

Swimming with Giants: The Thrill of Whale Shark Diving in Thailand

Few underwater encounters compare with the sight of a whale shark gliding peacefully through clear tropical water. Despite their enormous size, these gentle giants are filter feeders and are generally not a threat to divers. For underwater enthusiasts, encountering one can become the defining moment of a Thailand diving holiday. Whale shark diving Thailand is particularly appealing because the country combines warm waters, colourful reefs, dramatic underwater formations, and several locations where whale sharks are occasionally encountered. However, whale shark sightings are never guaranteed. The experience depends on season, location, ocean conditions, and the unpredictable movements of these magnificent animals. Why Whale Sharks Are So Fascinating Whale sharks are the largest known fish in the world. They can grow to enormous lengths and are recognisable by their broad heads, distinctive spotted patterns, and enormous mouths. Despite their appearance, whale sharks are not aggressive predators. They primarily feed by filtering plankton and other tiny organisms from the water. For divers, their size creates an extraordinary contrast. A whale shark can move calmly through the water while much smaller fish swim around it. Watching such a large animal move effortlessly underwater gives divers a completely different perspective on the marine environment. The best encounters are usually those where the diver remains calm, maintains distance, and allows the animal to determine the direction of the interaction. Where to Experience Whale Shark Diving in Thailand Thailand has several diving destinations associated with whale shark sightings. Two of the most well-known areas are Koh Tao and Koh Phi Phi, while offshore sites such as Chumphon Pinnacle and Hin Daeng and Hin Muang are also known for encounters with large pelagic species. Koh Tao Koh Tao is one of Thailand's best-known diving destinations and is especially popular with beginners and recreational divers. Chumphon Pinnacle, located offshore from Koh Tao, is a renowned dive site featuring underwater rock formations and a variety of marine life. Whale sharks are occasionally encountered here, although sightings can never be promised. The site can involve currents and deeper sections, so divers should follow the recommendations of their dive guide and ensure their experience and certification are appropriate for the conditions. Koh Phi Phi The waters around Koh Phi Phi offer colourful coral environments, limestone formations, and abundant marine life. Whale shark encounters are possible, although they are less predictable than the reef and fish sightings divers commonly experience. The region is also popular because diving can easily be combined with a broader island holiday. Hin Daeng and Hin Muang Located in the Andaman Sea, Hin Daeng and Hin Muang are famous for dramatic underwater walls and encounters with pelagic marine life. These sites are generally better suited to experienced divers because conditions can include stronger currents and deeper diving. A trip to this area may provide opportunities to encounter whale sharks, manta rays, and other large marine species. When Is the Best Time for Whale Shark Diving? There is no month when whale shark sightings are guaranteed in Thailand. Seasonal patterns can influence where whale sharks are encountered, but these animals are wild and highly mobile. Their presence depends on food availability, ocean conditions, currents, and other environmental factors. For this reason, responsible dive operators should describe whale shark encounters as a possibility rather than a certainty. Before booking a trip, ask the operator about recent sightings and typical seasonal conditions. Current local information can be much more useful than relying solely on a general annual calendar. What Is a Whale Shark Dive Like? The experience can begin long before entering the water. After reaching the dive site, the crew usually provides a briefing covering the expected conditions, entry procedure, depth, current, route, and safety considerations. Once underwater, divers may initially see nothing unusual. Whale sharks can appear suddenly, sometimes at a distance, before slowly approaching the reef or moving through open water. The first sighting can be overwhelming. Their size becomes increasingly apparent as the animal approaches. The best response is to stay calm, control buoyancy, maintain a respectful distance, and avoid chasing the shark. A good encounter does not require touching or following the animal. Simply watching it pass naturally through the water can be an unforgettable experience. Responsible Interaction Matters Wildlife encounters should always prioritise the animal's welfare. When participating in whale shark diving Thailand, divers should follow the instructions of their guide and avoid attempting to touch, ride, block, or chase a whale shark. Maintaining appropriate distance gives the animal room to move naturally and reduces unnecessary stress. Divers should also practise good buoyancy control. Accidentally contacting coral or other marine life can damage fragile reef ecosystems. Underwater photography should also be approached responsibly. Avoid crowding the animal simply to get a closer photograph. The best photograph is never worth disturbing wildlife. What Certification Do You Need? Certification requirements depend on the dive operator and specific site. Some whale shark dive locations may be accessible to certified recreational divers with appropriate experience. More challenging offshore sites may require stronger current skills, deeper-diving experience, or other qualifications. Beginners should not assume that every whale shark location is suitable for their first dive. If you are new to scuba diving, start with a beginner-friendly dive or certification course. Once you have developed your buoyancy, air-management, and underwater-awareness skills, you can consider more demanding dive sites. Experienced divers should still follow the dive centre's briefing because local conditions can change from one day to another. Visibility and Water Conditions Thailand is famous for warm tropical water, but underwater visibility is not identical at every location or on every day. Visibility can change because of weather, currents, plankton concentrations, rainfall, tides, and other environmental factors. Interestingly, the conditions that attract whale sharks can sometimes affect visibility. Plankton-rich water can provide an important food source while making the water less clear. This means divers should not judge a successful whale shark dive solely by photographic visibility. Seeing a whale shark in slightly reduced visibility can still be an extraordinary encounter. What Should You Bring? Most dive operators provide essential scuba equipment, but requirements vary. Divers should normally bring appropriate swimwear, a towel, reef-conscious sun protection, certification information if applicable, and any personal dive equipment they prefer. An underwater camera can be useful, but it should never distract you from monitoring your depth, air supply, buddy, and surroundings. If you are using a camera for the first time underwater, practise handling it without compromising your buoyancy or awareness. Whale Shark Diving vs. Regular Reef Diving Whale shark diving offers a very different experience from a standard reef dive. On a reef dive, divers may spend much of their time examining corals, small reef fish, nudibranchs, crustaceans, and other marine life. A whale shark encounter can shift attention toward open water and larger-scale movement. However, divers should not enter the water expecting only one animal. Thailand's reefs and pinnacles can offer plenty to discover even when a whale shark does not appear. This mindset makes the experience more enjoyable. Instead of treating the dive as a wildlife guarantee, see the whale shark as a potential highlight of a broader marine adventure. Choosing a Dive Operator Selecting the right operator is an important part of planning your trip. Look for a dive centre that provides clear information about: Dive-site conditions Required certification and experience Group sizes Equipment rental Safety procedures Dive duration and maximum depth Boat transfers Weather-related changes Cancellation policies A professional operator should be transparent about the possibility that whale sharks may not appear. Ask whether the guides follow responsible wildlife-interaction practices and how they manage encounters when several boats or divers are present. Why the Experience Stays With You The appeal of whale shark diving goes beyond seeing a large animal. There is something humbling about sharing the ocean with a creature that has evolved to survive in a completely different environment from our own. When a whale shark moves silently through the water, the usual sense of scale disappears. The animal may seem impossibly large, yet its movement can be slow and graceful. For many divers, that moment creates a deeper appreciation for marine conservation. It also reinforces an important lesson: underwater wildlife should be observed, not controlled. Final Thoughts Whale shark diving Thailand offers the possibility of one of the world's most memorable underwater encounters. From Koh Tao and Chumphon Pinnacle to Andaman Sea dive sites such as Hin Daeng and Hin Muang, Thailand provides several opportunities to search for these remarkable animals. But the most professional approach is to keep expectations realistic. Whale sharks are wild animals, and no responsible operator can guarantee a sighting. Choose the destination and dive operator carefully, understand the conditions, respect wildlife, and focus on enjoying the entire underwater environment. If a whale shark appears, give it space and savour the moment. If it does not, Thailand's reefs, pinnacles, walls, and marine life still offer an incredible diving experience. FAQs 1. Where can I see whale sharks in Thailand? Popular areas include Koh Tao, Chumphon Pinnacle, and several Andaman Sea dive sites. 2. Are whale sharks dangerous? Whale sharks are generally considered gentle filter feeders and are not known for hunting divers. 3. Can beginners go whale shark diving? Some sites may suit newer divers, but more challenging locations require appropriate certification and experience. 4. Can whale shark sightings be guaranteed? No. Whale sharks are wild animals, so sightings are never guaranteed. 5. Can I touch a whale shark? No. Divers should maintain a respectful distance and never touch, chase, or obstruct a whale shark.

Learn more