Where to dive in Thailand

(Thai) Koh Talang West

Koh Lipe, Satun

Wall and cascade of granite blocks with leafy soft coral gardens on the northwestern corner of Koh Talang, near Koh Lipe. The site drops to 25m and is known for octopus, tigertail seahorses, Khul rays and reef cat sharks hidden among the rock form...

(Thai) Koh Yang East

Koh Lipe, Satun

Coral reef on the eastern flank of Koh Yang in the Adang archipelago, accessible 15 minutes by boat from Koh Lipe. Light currents allow a gentle drift along the wall packed with colourful soft corals; a popular spot for macro photography with orna...

(Thai) Koh Yang West

Koh Lipe, Satun

West side of Koh Yang in Tarutao Marine National Park, one of the most sheltered sites in the Koh Lipe region. Soft corals in yellow, purple and white cover the wall to 15m depth; schools of snapper, turtles and varied macro life make it a favouri...

(Thai) Pattaya Corner

Koh Lipe, Satun

Rocky point covered in pink and purple soft corals on the southwestern end of the Adang archipelago, near Koh Lipe. Five minutes by boat from Koh Lipe, the site transitions from a shallow bay with octopus and seahorses to a deeper drift around gra...

3 Trees

Three Trees is a dive site on the northeast side of Island 9 of the Similan Islands, featuring massive granite bommies covered with soft corals and schools of glass fish between 8 and 30 m. The three large rocks that give the site its name form ex...

8 Mile Rock

Koh Lipe, Satun

8 Mile Rock is the most famous underwater pinnacle of Koh Lipe, about 8 miles south of the island. It rises from 40m+ to 12-16m and attracts mantas, eagle rays, leopard sharks, giant barracuda and whale sharks. Strong currents call for advanced di...

Anemone Reef

Phuket, Phuket

Submerged limestone pinnacle between Phuket and Phi Phi (Hin Jom), with the top at about 5m and base at 24-26m covered in a dense carpet of multicoloured anemones. Leopard sharks rest on the sand, and schools of barracuda and lionfish patrol the c...

Anita's Reef

Anita's Reef is located on the east coast of Island 5 (Koh Ha) of the Similan Islands, featuring an impressive coral dome ranging from 10 to 26 m surrounded by giant sea fans, table corals, and staghorn corals. Gentle currents and rich reef divers...

Ao Khai

Pattaya, Chonburi

Ao Khai is a shallow bay on the northwestern tip of Koh Phai, in the Pattaya Far Islands group. The reef begins at 3m and drops to about 15m, with hard corals, anemone gardens and hawksbill turtles - ideal for beginners and courses.

Ao Park Gard

Phang Nga

Ao Park Gard is a protected bay in the Surin Islands with shallow hard coral reef ideal for introductory diving and snorkeling. The diversity of colorful reef fish and low current influence make the site suitable for beginner divers and certificat...

Ao Sane

Rawai, Phuket

Hidden beach near Rawai in southern Phuket, with a coral reef accessible directly from the sand. The northern side of the bay offers depths to 16m with resident turtles, urchins and healthy corals; currents are practically absent, making the site ...

Banana Bay

Phuket, Phuket

Banana Bay is a banana-shaped bay on the east side of Racha Noi, south of Phuket. The sandy bottom with hard coral bommies ranges from 3 to 30m and offers visibility of 20-40m. It is the shallowest site at Racha Noi, ideal for beginners and DSD wi...

Batfish Rock

Batfish Rock is a submerged rocky outcrop near Koh Tachai in the Andaman Sea, famous for the circular schools of batfish that surround the granite blocks. The site offers excellent visibility and moderate currents that support a rich reef fauna.

Bay 1

Koh Racha Yai, Phuket

First bay on the east side of Racha Yai, 27 km south of Phuket, with a shallow coral reef (3-8m) and an artificial wreck at 20-25m that acts as habitat for moray eels, stonefish and schools of juvenile barracuda. Minimal currents and good visibili...

Bay 3 (Konkare Bay)

Phuket, Phuket

Bay 3 (Konkare Bay) is the third bay on the east coast of Racha Yai, south of Phuket, with rocky bommies at 3-10m on a white sand bottom. The reef extends to Bay 4 (Lucy Reef) at depths from 5 to 30m, ideal for courses and dives with turtles, squi...

Beacon Point

Beacon Point lies south of the Similan Islands and features a fringing reef with an abrupt drop from 5 to 30 m filled with varied hard corals — staghorn, brain coral, and bottle coral. The site is frequently included in liveaboard itineraries for ...

Beacon Reef Atlantis Wreck

Beacon Reef, the most extensive reef of the Similan Islands on the east coast of Island 8, features an abrupt drop from 5 to 40 m with staghorn, brain, and bottle corals, as well as the Atlantis X wreck with bow at 15 m and stern at 30 m transform...

Bida Nai

Koh Phi Phi, Krabi

Koh Bida Nai is the smaller of the two Bida limestone islands at the southern end of Phi Phi, with large boulders forming swim-throughs and colourful reefs. Blacktip reef sharks, hawksbill turtles, octopus and rare aggregations of leopard sharks.

Bida Nok

Koh Phi Phi, Krabi

Koh Bida Nok is a limestone island at the southern end of the Phi Phi archipelago, with the south bay sheltered for beginners (5-12m) and the outer wall for experienced divers. Schools of yellow snappers, blacktip reef sharks and rare leopard shar...

Blueberry Hill

Koh Chang, Trat

Blueberry Hill is a site with two underwater pinnacles southeast of Koh Chang, with a maximum depth of 15m. The canyon at 8-9m and the coral-covered pinnacles shelter blue-spotted rays, schools of yellowtail barracuda, batfish and nudibranchs.

Boonsung Wreck

Khao Lak, Phang Nga

The Boonsung Wreck is the carcass of an abandoned tin dredge from 1984, fragmented by the 2004 tsunami into several metal blocks lying on sand at 18–20 m, a few kilometers west of Khao Lak. The artificial wreck shelters moray eels, lionfish, juven...

Breakfast Bend

Breakfast Bend is located on the east coast of Island 9 of the Similan Islands, with a sloping hard coral reef descending from 5 m to sand at 25–30 m, dotted with colorful bommies. Gentle currents and abundant reef life — turtles, sweetlips, nudib...

Christmas Corner Rocky Point

Christmas Corner Rocky Point is a rocky outcrop at Island 9 of the Similan Islands featuring granite blocks and soft coral walls between 10 and 35 m, combining characteristics of Christmas Point and North Point. The site offers passages between ro...

Christmas Point

Christmas Point is located at the northwest point of Island 9 in the Similan Islands, featuring an impressive swim-through at 24 m between massive granite blocks covered with soft corals and seafans. Above 10 m there are hard coral gardens that fo...

Christmas Point

Khao Lak, Phang Nga

Granite pinnacle on the northwestern tip of Island 9 of Similan National Park, known for the swim-through between blocks covered in soft corals and sea fans. Above 10m, hard coral gardens shelter butterflyfish and schools of fusiliers. Typical vis...

Deep Six

Deep Six is located at the northern tip of Isla 7 (Koh Pa-Yu) in the Similan Islands and offers a V-shaped extension of granite blocks and boulders with depths ranging from 5 to 40 m. Swim-throughs and caves between 12 and 22 m reward intermediate...

Donald Duck Bay

Donald Duck Bay, on the northwest face of Island 8 in the Similan Islands, is a shallow and protected dive site with depths down to 20 m featuring granite boulders, soft corals, and clean sand. Green and hawksbill turtles are a constant presence, ...

Elephant Head Rock

Elephant Head Rock (Hin Pusa) is one of the most iconic formations in the Similan Islands — a pile of enormous granite boulders in open water between islands 7 and 8, with a labyrinth of passages, arches and tunnels between 5 and 35 m. Exposure to...

Harddeep Suthathip

Sattahip, Chonburi

Wreck of the SS Suddhadib (HTMS Hardeep), an 80m British cargo ship bombed by the RAF in June 1945 off the coast of Sattahip. Located near Koh Chuang, it lies on its side between 18 and 28m, with unexploded bombs still on site that demand caution.

Hardeep Wreck

Sattahip, Chonburi

The SS Suddhadib (HTMS Hardeep) is an 80m British cargo ship sunk by the RAF on 1 June 1945 near Koh Chuang in Sattahip. It lies on its side at 28m with the upper portion at around 18m, covered in coral and home to groupers, barracuda and turtles....

Hin Bida

Koh Phi Phi, Krabi

Hin Bida is a submerged pinnacle (top at 5m, base at 18-20m on a sandy bottom) about 8 km southeast of Phi Phi Leh, known as the 'Phi Phi Shark Point'. One of the best places in Thailand to spot leopard sharks resting on the sand.

Hin Daeng

Ko Lanta, Krabi

Hin Daeng (Red Rock) is a giant pinnacle that breaks the surface about 100 km south of Phuket in the Andaman Sea, with walls covered in red and purple soft corals dropping more than 60m. It is one of the best sites in Thailand to spot oceanic mant...

Hin Klai

Koh Phi Phi, Krabi

Hin Klai (Garang Heng) is a submerged coral pinnacle 2 km east of Phi Phi Leh, fully submerged (top at 5m), with a maximum depth of 13-17m. Nicknamed 'Phi Phi Shark Point' for the frequent leopard shark appearances on the sandy bottom.

Hin Luang

Hin Luang is a submerged rocky reef near Koh Bon in the Andaman Sea, featuring granite boulders covered with soft corals and gorgonians at depths of 10 to 30 m. The site attracts rays, reef sharks and schools of fusiliers, complementing dives at t...

Hin Luk Bat

Koh Chang, Trat

Hin Luk Bat is considered the best dive site of Koh Chang, with varied topography from 3 to 22m and outcrops with narrow swim-throughs. The two buoys are fixed at 12m and most dives take place between 5 and 16m, with schools of snappers, fusiliers...

Hin Mu Sang (Shark Point)

Phuket, Phuket

Hin Mu Sang ('Shark Point') is a set of three limestone pinnacles south of Phuket (28 km east), partially breaking the surface, with walls covered in pink and purple soft corals, anemones and barrel sponges. Famous for leopard sharks on the sand.

Hin Muang

Ko Lanta, Krabi

Hin Muang (Purple Rock) is the deepest wall dive in Thailand, a submerged pinnacle covered with the purple soft corals that give the site its name and drop continuously beyond 60m. Cleaning station for oceanic manta rays primarily from November to...

Hin Pae

Chumphon, Chumphon

Hin Pae (Hin Lak Ngam) is a pinnacle in Mu Koh Chumphon National Park, north of Koh Ngam Yai. Depths from 5 to 25m with hard corals, soft corals, anemones and a wide field of black coral, sheltering pipefish, rays and occasionally whale sharks.

Hin Raab

Koh Chang, Trat

Hin Raab is a pair of pinnacles west of Koh Chang with walls dropping gently to a sandy bottom at around 12m. The site can be circumnavigated in 60 minutes and offers the greatest coral diversity (hard and soft) of the region, with hawksbill turtl...

Hin Rap

Koh Chang, Trat

Hin Rap (Hin Raab South) is the southern pinnacle of the pair west of Koh Chang, with a wall dropping to a sandy bottom at 12m. The site can be circumnavigated in a single dive and offers staghorn, leather, whip and table corals with snappers, gro...

Home Run Reef

Koh Racha Yai, Phuket

Long reef running along the east side of Racha Yai towards the north of the island, named for the route that 'takes you back' to the starting point at Chalong. Hard corals dominate (staghorn, branch and pore coral) from 5 to 20m, with octopus, squ...

Htms Chang Wreck

Koh Chang, Trat

The HTMS Chang is the largest wreck in Thailand, a 100m vessel intentionally sunk in 2012 near Koh Chang to create an artificial reef. The bottom is at 30m, the main deck at 24m and the stern tower at 7m, with batfish, barracuda, giant groupers, o...

Htms Phra Thong Wreck

The HTMS Phra Thong is a Thai military vessel intentionally sunk as an artificial reef near the coast of Koh Phra Thong in the Andaman Sea. The hull now harbors a growing fish population and has been sighted with whale sharks, making it a point of...

Htms Prab Wreck 741

Chumphon, Chumphon

The HTMS Prab 741 is a 1944 warship (sister of the HTMS Sattakut at Koh Tao) sunk in 2011 south of Koh Ngam Noi, in Chumphon. Average depth of 21m with abundant marine life including batfish, groupers and snappers. Easier to access than the Sattak...

Island #9

The reefs around Island #9 (Koh Bon) of the Similan Islands present a landscape of granite blocks and coral gardens between 8 and 40 m, with multiple points of interest including North Point, Christmas Point and Three Trees. Variable currents and ...

Karon Beach

Karon, Phuket

Shallow, calm dive from Karon Beach in central-western Phuket, used mainly for dive courses and macro photography. Maximum depth 8m with hard coral and rock formations sheltering lionfish, nudibranchs and tropical reef species; light currents and ...

King Cruiser Wreck

Phuket, Phuket

King Cruiser Wreck is an 85m ferry that sank in 1997 after colliding with Anemone Reef. Today it is the most famous wreck in Phuket, with a hull covered in soft corals and schools of barracuda and snappers; ceiling at 14-18m and bottom at 30-33m, ...

Kled Gaew Wreck

Koh Phi Phi, Krabi

Kled Gaeow Wreck is a 47m Thai Navy vessel intentionally sunk in 2014 east of Phi Phi Leh (in front of Pi-Leh Bay). Ceiling at 14-16m, main deck at 20m and keel at 26m, with soft corals colonising the hull and schools of fusiliers.

Ko Ha 1

Koh Phi Phi, Krabi

Ko Ha 1 is the first island of the Koh Haa archipelago ('Five Islands'), 16 km west of Koh Lanta, inside the Mu Ko Lanta National Park. A sloping reef with hard corals, garden eels and turtles, ideal for beginners (5-20m).

Ko Ha Lagoon

Koh Lanta, Krabi

Ko Ha Lagoon is the central lagoon of the five-island Koh Haa group, 16 km west of Koh Lanta in Mu Ko National Park. Calm, shallow water (5-15m) with varied corals, sea stars, shrimp, crabs and seahorses - ideal for all levels.

Ko Haa Lagoon

Koh Lanta, Krabi

Ko Haa Lagoon is the protected central lagoon of the Koh Haa group, formed by Yai, Sam and Neung islands. Shallow turquoise water (5-15m) is a sanctuary for brain corals, sea fans, sea stars and seahorses, with excellent average visibility of 25m.

Koh Bida Nai

Koh Phi Phi, Krabi

Koh Bida Nai is the smaller of the two Bida islands at the southern end of the Phi Phi archipelago. The west wall drops to over 20m, where blacktip reef sharks patrol along with octopus, squid, turtles and moray eels. Fantasy Reef to the north she...

Koh Bida Nok

Koh Phi Phi, Krabi

Koh Bida Nok is the larger of the Bida islands at the southern end of the Phi Phi archipelago. The reef is in excellent condition, with outer walls to 30m, the iconic school of yellow snappers, giant barrel sponges and blacktip reef sharks patroll...

Koh Bon

Koh Bon is an isolated island between the Similan and Surin Islands, recognized as Thailand's premier hotspot for oceanic manta rays. The island's West Ridge descends in a vertical wall to 38 m, while the protected bay offers gentler dives for all...

Koh Bon West Ridge

Koh Bon's West Ridge is the primary manta ray sighting spot in Thailand, with an active cleaning station at the west tip of the island. The vertical wall descends to 35–38 m, covered with soft corals and sea whips, and mantas arrive regularly betw...

Koh Bon Bay

Phang Nga

Koh Bon Bay is the protected bay on the east side of Koh Bon, with a shallow coral reef ranging from 5 to 20 m ideal for leisure dives between descents to the West Ridge. The diversity of reef life — butterflyfish, sweetlips and sea turtles — make...

Koh Bon Pinnacle

Koh Bon Pinnacle is a fully submerged underwater mountain located approximately 100 m northwest of West Ridge, with its top at 18 m and descent exceeding 45 m in currents ranging from weak to strong. The pinnacle concentrates oceanic manta rays, t...

Koh Bon West Ridge

West Ridge of Koh Bon features one of Thailand's most consistent concentrations of oceanic manta rays, with an active cleaning station at the ridge point. The wall descends vertically through soft corals and sea whips to approximately 38 m, recomm...

Koh Doc Mai

Chalong, Phuket

Limestone island 15 km east-southeast of Chalong Bay, with vertical walls covered in soft corals, sponges and anemones dropping to 25m. A macro photography paradise: seahorse, ghost pipefish, octopus and dozens of nudibranch species inhabit the cr...

Koh Doc Moi, Phuket

Chalong, Phuket

West face of Koh Doc Mai (Flower Island), a limestone island east of Phuket, with a gentler wall than the east side and hard corals from 12 to 20m before the sandy bottom. A good third dive of the day, paced slowly to spot nudibranchs, pygmy octop...

Koh Dok Mai

Phuket, Phuket

Koh Dok Mai ('Flower Island') is the limestone island east of Phuket known as the best wall dive in the region, with vertical walls dropping from 5 to 25m, packed with caves and overhangs. Seahorses, ghost pipefish, frogfish and occasional bamboo ...

Koh Dok Mai

Chalong, Phuket

East wall of Koh Doc Mai, considered the best macro photography spot in the Phuket region: the limestone face drops vertically from 0 to over 30m covered in soft corals, sponges and gorgonians. Seahorse, ghost pipefish, frogfish and rare nudibranc...

Koh Haa

Koh Lanta, Krabi

Koh Haa is a group of five (or six, depending on the count) uninhabited limestone islands 16 km west of Koh Lanta, inside the Koh Mu National Park. The archipelago offers more than 12 dive sites, with caves (the famous Cathedral), depths from 3 to...

Koh Haa #1 The Chimney

Koh Lanta, Krabi

Koh Haa #1 The Chimney features a characteristic vertical swim-through (the chimney) that begins at 4m and drops to 17-18m, opening into a submerged cave. Along with the chimney, the site has fields of soft coral and sea fans - one of the most sin...

Koh Haa 1 (Neung)

Koh Lanta, Krabi

Koh Haa 1, also called Neung (Thai for 'one'), is the first island of the Koh Haa group near Koh Lanta. Reef walls with colourful soft corals drop to 18m, with ghost pipefish, seahorses and nudibranchs - suitable for all levels.

Koh Haa 5

Koh Lanta, Krabi

Koh Haa 5 is one of the five limestone islands of the Koh Haa archipelago, west of Koh Lanta. The site combines reef wall with isolated bommies at 3-25m, sheltering occasional leopard sharks, octopus, nudibranchs and seahorses, with average visibi...

Koh Haa 6

Koh Lanta, Krabi

Koh Haa 6 is a smaller island of the Koh Haa group in Mu Ko Lanta National Park, west of Koh Lanta. The site combines a shallow reef with small walls to 20m, with schools of fusiliers, snappers and sporadic mantas - a good choice for beginners and...

Koh Haa Lagoon

Koh Lanta, Krabi

Koh Haa Lagoon is the central marine sanctuary of the Koh Haa group, west of Koh Lanta. The lagoon shelters the three most popular sites of the archipelago, with shallow water (5-15m), white sand beach and bottom covered in brain corals, sea stars...

Koh Haa Sam (#3)

Koh Lanta, Krabi

Koh Haa Sam (Island #3) is the third of the five limestone islands of Koh Haa, west of Koh Lanta. The surrounding coral reef drops to 18m with sea fans, barrel sponges and pipefish, and offers average visibility of 25m - ideal for all levels.

Koh Haa Yai

Koh Lanta, Krabi

Koh Haa Yai is the largest island of the Koh Haa group (yai means big in Thai), west of Koh Lanta in Koh Mu National Park. The southern part shelters the famous Cathedral (connected caves with an air pocket) with entrances at 14m, and the site com...

Koh Haa Yai #5 The Cathedral

Koh Lanta, Krabi

Koh Haa Yai #5 The Cathedral is the most famous cave formation of Koh Haa: three connected chambers with a dome holding an air pocket where divers can remove the regulator and breathe. The main entrance is at 14m and natural light filtered by the ...

Koh Jabang

Koh Lipe, Satun

Shallow soft coral garden near Koh Jabang, inside the Tarutao Marine National Park near Koh Lipe. The site drops to only 16m and is covered with dendronephthya in shades of pink, red and purple; perfect for macro photography with clownfish, butter...

Koh Khrok

Pattaya, Chonburi

Koh Khrok is a small finger-shaped island in the Pattaya Near Islands, 9 km east of Pattaya beach. Depth between 3 and 12m, with the highest concentration of hawksbill turtles in the archipelago (4 residents), anemone gardens, octopus and clownfish.

Koh Klung Badan

Pattaya, Chonburi

Koh Klung Badan is an uninhabited island of the Pattaya Far Islands, south of Koh Phai. Known for barrel sponges and rocky bommies, it has a sheltered bay for beginners on the west side and a deeper wall to the south for advanced divers, with turt...

Koh Krock

Pattaya, Chonburi

Koh Krock (spelling variant of Koh Khrok) is a small island of the Pattaya Near Islands, 9 km east of Pattaya. Shallow reef from 3 to 14m with a concentration of resident turtles, anemones, octopus and the occasional drift dive on the west-side cu...

Koh Lak Ngam

Chumphon, Chumphon

Koh Lak Ngam (Hin Phae) is a site in Mu Ko Chumphon National Park, north of Koh Ngam Yai. Depth from 5 to 25m with hard corals, soft corals, anemones and a large field of black coral, sheltering pipefish, rays and schools of barracuda in mid-water.

Koh Laun

Koh Mak, Trat

Koh Laun (also known as Koh Yak Lek) is a small island of the Koh Rang Marine Park, west of Koh Mak. The healthy reef rings the island with maximum depth of 15m, sheltering rays, moray eels, pufferfish, fusiliers and barracuda - ideal for beginners.

Koh Man Wichai

Pattaya, Chonburi

Koh Man Wichai is an island of the Pattaya Far Islands north of Koh Rin, with two main sites: The Fingers (rocky formations with soft corals and macro) and The Wall (wall to 14m with sea fans). Sleeping bamboo sharks, turtles and nudibranchs are c...

Koh Ngam Noy

Chumphon, Chumphon

Koh Ngam Noy is the smaller of the two Koh Ngam islands in Mu Ko Chumphon National Park. The surrounding reef drops to 25m and the HTMS Prab lies a few metres to the south. Marine life includes anemones, pufferfish, groupers and schools of barracuda.

Koh Pung

Koh Lipe, Satun

Granite blocks covered in colourful soft corals around Koh Pung, one of the most diverse sites of Tarutao National Park near Koh Lipe. Depth to 35m with strong currents during the full moon; marbled rays hide under the rocks and mantas and whale s...

Koh Racha Noi Between The Islands

Phuket, Phuket

Between the Islands of Koh Racha Noi is the channel between the two Racha islands (Yai and Noi) south of Phuket. Granite pinnacles drop from 15-18m to over 60m with currents that can reach 4 knots, attracting whitetip reef sharks, manta rays and t...

Koh Racha Yai

Phuket, Phuket

Koh Racha Yai is an island 27 km south of Phuket with crystal-clear water and ten dive sites. The sheltered bays have a white sand bottom and rocky bommies with resident green turtles, blacktip reef sharks, electric rays and average visibility of ...

Koh Rin

Pattaya, Chonburi

Koh Rin is an island of the Pattaya Far Islands, 10 km south of Koh Lan, known for the healthiest coral reefs in the Pattaya gulf. Average depth of 7m and maximum 22m with schools of barracuda, turtles, octopus and corals in cleaner conditions tha...

Koh Sak

Pattaya, Chonburi

Koh Sak is the northernmost island of the Pattaya Near Islands, 10 km west of Pattaya beach. Calm, shallow water (3-15m) makes the site excellent for training, with varied corals, anemones, clownfish and resident hawksbill turtles.

Koh Sak East

Pattaya, Chonburi

Koh Sak East is the east side of Koh Sak, more exposed than the west but still shallow (3-12m). The sandy reef with bommies shelters moray eels, lionfish, stonefish and resident turtles. A good drift-dive option in light currents.

Koh Sak West

Pattaya, Chonburi

Koh Sak West is the sheltered west side of Koh Sak, with a shallow bay between 3 and 8m ideal for Discover Scuba and Open Water Course. The reef slopes to 14m on the western point and offers colourful corals, anemones and clownfish in calm water.

Koh See

Ao Nang, Krabi

Koh See ('Island 4') is part of the group of limestone islets between Krabi and Phi Phi, with a shallow coastal reef (5-18m) and small overhangs in the formations. A site suitable for beginners, with leopard sharks and blacktips spotted occasionally.

Koh Surin (Surin Islands)

Morgan Village

The Surin Islands form a marine national park in the northern Thai Andaman Sea, featuring shallow hard coral reefs and the nearby Richelieu Rock as a highlight for divers. The islands' internal reefs are frequented by sea turtles, parrotfish and c...

Koh Tachai

The reefs of Koh Tachai, the northernmost island of the Similans, combine imposing granite topography with rich currents that feed large predators and pelagics. The Pinnacle and the east reef compose one of the best diving combinations in the Anda...

Koh Tachai (Thailand Similan Islands)

Koh Tachai is the northernmost island in Similan National Park, offering two world-class dive sites: the Pinnacle and the eastern reef. Nutrient-rich currents feed enormous barracuda schools and regularly attract oceanic manta rays and whale shark...

Koh Tachai Pinnacle

Koh Tachai Pinnacle is a granite underwater mountain located north of Similan National Park, with its summit at 12 m and a steep descent to 30 m in currents that vary from weak to intense. The site concentrates some of Thailand's largest barracuda...

Koh Tachai Reef

The east reef of Koh Tachai offers a hard coral plateau at 12 m that descends gently to sand at 30 m, teeming with enormous schools of barracuda, giant trevally, and fusiliers. Leopard sharks rest on the sand, while manta rays and whale sharks mak...

Koh Tachai, The Dome

The Dome is the feature that names the Koh Tachai Pinnacle — a rounded summit at 12–14 m covered in hard corals that rises from the bottom at 30 m, subject to unpredictable currents that feed immense schools of barracuda and attract manta rays. It...

Koh Taru

Koh Lipe, Satun

Coral reef around Koh Taru (whose Thai name means 'crossing'), located 15 minutes by boat from Koh Lipe. The site is celebrated for an immense school of yellow snapper, cat shark and lush green corals; calm water with visibility up to 25m allows e...

Koh Tien

Koh Mak, Trat

Koh Tien is a shallow site in the north of the Koh Rang Marine Park, with depth between 10 and 16m. The recovering coral garden after dynamite fishing offers typical visibility of 10m and is suitable for beginners and Open Water courses.

Koh Weo

Phuket, Phuket

Koh Weo (Koh Waeo) are two small rocky islands 30 minutes by boat from Bangtao Beach, west of Phuket. Coral reef on three sides (5-12m) and granite bommies to the west dropping to 22m, with moray eels, groupers and pipefish from September to May.

Koh Ya Wa Bon

Ao Nang, Krabi

Koh Yawabon is a limestone island 5 km south of Ao Nang with reef (12-15m) and multiple tunnels and caves, including a 50m swim-through that requires advanced training. Blue-spotted rays and leopard sharks are found on the sand.

Koh Ya Wa Sam

Ao Nang, Krabi

Koh Yawasam is a limestone islet in the Ao Nang/Krabi region with a shallow plateau of hard corals (a few metres) and deeper channels with swim-throughs and mini-caves. Seahorses, anemones, blue-spotted rays, bamboo sharks and occasional green tur...