Explore the world underwater

Tarsier (on land) · turtles · sea snakes

Green and hawksbill turtles on almost every dive · eagle rays · reef sharks

More than 350 species of coral and close to 500 of fish; hammerheads · thresher shark · eagle rays

Reef manta rays all year round at Manta Point; sunfish (Mola alexandrini) in the cold season; turtles · reef sharks

Blacktip reef sharks · turtles · manta rays

Manta rays at the cleaning stations of Koh Bon and Koh Tachai · turtles · leopard sharks

Reef sharks · hammerheads · thresher shark

More than 400 species of fish; bumphead parrotfish at dawn · trevally · barracuda

Blacktip reef sharks · turtles · nudibranchs

Occasional hammerhead sharks · manta rays · turtles

Turtles · Napoleon wrasse · soft corals

Sunfish (mola mola) · manta rays · turtles

Reef sharks · turtles · hard corals

Reef sharks · turtles · pristine corals

Green turtles · blacktip reef sharks

Occasional whale sharks · turtles · groupers

Millions of sardines in bait balls · turtles · whitetip reef sharks

Nesting green turtles · occasional dugongs

Green turtles · clownfish · soft corals

Occasional dugongs · nesting turtles · hard corals

Turtles · reef sharks · soft corals

Green turtles nesting en masse · manta rays

Green turtles well used to divers · shoals of reef fish · dense hard coral

Whitetip reef sharks · turtles · Napoleon wrasse

Schooling scalloped hammerhead sharks · sea snakes · mobula rays

Turtles · reef sharks · the nearby HMS Prince of Wales wreck

Blacktip reef sharks · barracuda · turtles

Seahorses · turtles · hard corals

Green and hawksbill turtles · whitetip reef sharks

Reef fish · turtles · soft corals

Turtles · reef sharks · soft corals

Turtles · reef fish · freshwater caves nearby

Reef fish · turtles · hard corals

Turtles · reef fish · fruit bats on a nearby island

Olive sea snakes · very large turtles · groupers

Turtles · reef fish · hard corals

Reef sharks · dolphins · turtles

Resident manta rays · turtles

Whale shark · dolphins · turtles

Reef sharks · turtles · barracuda

Blacktip reef sharks · turtles · parrotfish

Leopard sharks · turtles · seahorses

Clownfish · turtles · octopus

Green turtles · hard corals of great diversity

Turtles · reef sharks · manta rays

Green turtles · moray eels · reef fish

Reef manta rays for much of the year · turtles · leopard sharks

Mangroves · seagrass meadows · fringing reef; the world's largest population of giant tortoise

Dugongs · whale sharks on passage · turtles

Green turtles · blacktip reef sharks

Nesting green turtles · dugongs · reef sharks

Turtles · whitetip reef sharks · dolphins

Green turtles · clownfish · hard corals

Green turtles · moray eels · reef fish

Dolphins · green turtles · Napoleon wrasse

Reef fish · turtles · hard corals

Reef sharks · turtles · high coral biodiversity

Nesting green and hawksbill turtles · manta rays · reef sharks

Leopard sharks · turtles · occasional manta rays

Resident dolphins · turtles · Napoleon wrasse

Reef sharks · turtles · clownfish

Nurse sharks · hawksbill turtles · manta rays

Turtles · clownfish · moray eels

Turtles · occasional dugongs · dolphins

Napoleon wrasse · green turtles · pristine corals

Turtles · reef fish

Whitetip reef sharks · groupers · more than 16 distinct dive sites

Reef sharks · giant groupers · turtles

Hammerheads · grey reef shark · oceanic whitetip

Dolphins · turtles · clownfish

Nurse sharks · American crocodiles · sea turtles

Dugongs · turtles · whitetip reef sharks

Turtles · dolphins · clownfish

Forests of sea fans · moray eels · groupers

Barracuda · trevally · batfish

Green turtles · thermal warm-water corals

Whale sharks on passage · turtles · manta rays

Occasional dugongs · turtles · reef fish

Turtles · clownfish · soft corals

Resident dugongs · green turtles

Hammerhead sharks · grey reef sharks · barracuda

Clownfish · Napoleon wrasse · turtles

Turtles · reef sharks · hard corals

Almost 300 species of fish and more than 20 of coral; manta rays · sharks · turtles

Turtles · vase sponges · snappers

Whitetip reef sharks · turtles · hard corals

Humpback whales on passage · turtles · lagoon fish

Reef fish · turtles · hard corals

Turtles · reef sharks · lagoon fish

Grey reef · silky · nurse

Turtles · Napoleon wrasse · reef sharks

Bull sharks · groupers · turtles

Reef sharks · turtles · hard corals

Turtles · reef sharks · the John Williams wreck

Reef fish · turtles · occasional sharks

Turtles · reef fish · hard corals

Bull sharks (rare) · rays · turtles

Lobsters · turtles · parrotfish

Turtles · reef fish · the Betty Bomber aircraft wreck

Reef sharks · turtles · karst formations

Sharks · turtles · occasional dolphins

Reef fish · turtles · occasional sharks

Groupers · nurse sharks · giant lobsters

Turtles · reef fish · hard corals

Reef fish · turtles · submerged statues

Reef fish · hard corals · turtles

Nurse sharks · turtles · groupers

Resident spinner dolphin · turtles · reef and lemon sharks