Where to dive in Thailand

Ao Park Gard

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...

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.

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...

Boonsung Wreck

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...

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...

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...

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...

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 ...

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

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 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...

Mooring Bay

Mooring Bay is a protected bay on Island 8 (Koh Similan) used as a night anchorage by liveaboards, featuring shallow hard coral reef and granite boulders ranging from 5 to 20 m. The calm bay is ideal for introductory dives, snorkeling, and night s...

North Point

North Point is the northernmost point of the Similan Islands (Island 9), where granite columns parallel to the coast form canyons and navigable passages between 10 and 40 m. Moderate to strong currents converge at this exposed point, attracting re...

North Tip Ko Tachai

The north tip of Koh Tachai is an exposed point subject to open currents of the Andaman Sea, with granite boulders descending beyond 35 m and aggregating large pelagics such as whale sharks and manta rays. The exceptionally clear visibility and pr...

Richelieu Rock

Richelieu Rock is a horseshoe-shaped pinnacle located at the Surin Islands, widely considered the best dive site in Thailand. Moderate to strong currents bathe the purple soft coral reef and fuel an extraordinary food chain, with frequent whale sh...

Richelieu Rock Hin Pio Naam

Satellite point near Richelieu Rock, in the Surin Islands, where submerged rocky outcrops attract schools of barracuda and giant trevally. The site shares the currents and pelagic richness characteristic of the area, with occasional chances of enc...

Sea Chart Wreck

The MV Sea Chart (also called "The Teak Wreck") is an 84 m vessel that sank in 2009 while carrying teak wood from Myanmar, resting on its starboard side with the bow at 24 m and the stern at 42 m. The artificial reef already harbors immense school...

Similan #8 Turtle Rock

Turtle Rock is located on the northwest side of Island 8 in the Similan Islands, featuring shallow granite boulders covered with staghorn corals and explorable passages between 8 and 10 m. Green and hawksbill turtles are frequent sightings, making...

Similans #9 Breackarst Bend

Breakfast Bend on Similan Island 9 features a sloping reef with hard coral bommies between 8 and 30 m, ideal for divers of all levels in the bay's gentle currents. Turtles, oriental sweetlips, and nudibranchs are common sightings at this classic d...

South East Rock (Thailand Surin Island)

South East Rock is a rocky outcrop on the southeast side of the Surin Islands, with hard and soft coral reef that attracts diverse reef life at depths of 5 to 25 m. The site is less frequented than Richelieu Rock and offers calm dives with a good ...

Stonehenge

Stonehenge is a cluster of enormous granite blocks in open water between the Miang and Payu islands of the Similan archipelago, with a sandy bottom at 36–40 m — among the deepest dive sites in the archipelago. Moderate to strong currents and the d...

Tachai Pinacle

The Koh Tachai Pinnacle is a granite underwater mountain with its summit at 12 m and flanked by boulders descending to 30 m, subject to intense currents that bring massive schools of barracuda, manta rays, and whale sharks. Advanced level required...

Tachai Pinnacle

Tachai Pinnacle is the main dive site of Koh Tachai, the northernmost island of the Similans, featuring a granite pinnacle with a rounded summit at 12 m descending to 30 m in strong currents that feed prominent predators and pelagics. Oceanic mant...

Tachai Reef

Koh Tachai reef descends gently from 10 to 30 m with a plateau of hard corals and large granite boulders where leopard sharks rest on the sand. Impressive schools of barracuda and giant trevally circle the reef, with regular visits from manta rays...

Thailand, Koh Tachai (Tachai Pinnacle / The Dome)

The Koh Tachai Pinnacle is the most challenging and spectacular dive site on the island, featuring a dome-shaped summit at 12–14 m that descends through granite blocks to sand at 30 m. Strong and unpredictable currents attract huge schools of barr...

The Aquarium

The Aquarium is a shallow dive site near the Pinnacle of Koh Tachai, with granite blocks covered in colorful corals between 10 and 25 m that harbor an extraordinary density of reef fish. The name reflects the water clarity and variety of species, ...

Three Trees

Three Trees, on the northeast side of Island 9 of the Similan Islands, owes its name to three trees visible on the slope above the anchorage point. Massive granite bommies covered in soft corals descend from 8 m to 30 m, with rays and garden eels ...

Torinla Reef

Torinla Reef is located on the east side of Koh Torinla, south of the Surin Islands, featuring an extensive reef of hard and soft corals extending from the surface to 30 m depth. The diversity of gorgonians and good visibility make this site attra...

Turtle Ledge

Turtle Ledge is a sloping hard coral reef on the southeast side of the Surin Islands, with depths ranging from 5 to 20 m, where green and hawksbill turtles come to feed on abundant algae and sponges. The gentle topography and weak currents make th...

Turtle Rock

Turtle Rock, near Koh Tachai in the Andaman Sea, is a rock formation that partially emerges at the surface and descends through coralline granite blocks to 25 m. Green sea turtles are frequent sightings on the shallow slopes, and the site offers c...

Walkers Reef

Walkers Reef is a remote reef north of the Surin Islands in the Andaman Sea, featuring hard and soft coral formations at depths of 5 to 25 m with low diver traffic. The isolation favors pristine marine life and the possibility of uncommon sighting...

West Of Eden

West of Eden, on the western face of Island 7 (Koh Payu) of the Similan Islands, combines a shallow hard coral garden between 8 and 12 m with enormous granite boulders covered in multicolored gorgonians below 20 m. Channels and passages between th...

West Ridge, Koh Bon

West Ridge of Koh Bon is internationally recognized as a cleaning station for oceanic manta rays in Thailand, featuring a vertical wall covered with soft corals and sea whips that descends to 38 m. The abundance of corals and the constant presence...