Diving in Thailand means whale shark season and big pelagics in blue water — from Richelieu Rock to Hin Daeng. Every dive site in Thailand with depth, current, certification level and best season, plus the liveaboard itineraries that actually dive them.
Thailand is one of the world's great liveaboard destinations, with 51 mapped dive sites covering reefs, walls, drifts, channels and wrecks.
Every site below shows depth range, certification level, current, access and the best season, so you can judge at a glance whether it fits your experience. Start with the full site list, then explore dive sites by type, the nearest decompression chambers and the marine life you can expect in Thailand.
All 51 dive sites in Thailand
Depth range, certification level, dive type, access and current at a glance.
Open any site for its full profile, best season and the liveaboards that dive it in Thailand.
51 dive sites
Thailand
Richelieu Rock, often celebrated as Thailand's premier dive site, is a majestic, isolated pinnacle located within Surin National Park in the northern Andaman Sea.
Thailand
Koh Bon is a distinguished dive site located north of Similan Island No. 9, within the same national park administration, though geographically distinct as a limestone island compared to the Similans' granite formations.
Thailand
Hin Muang, translating to 'Purple Rock', is one of Thailand's premier dive sites, located within the Mu Koh Lanta National Park.
Thailand
Christmas Point, located on Similan Island number 9 (Koh Ba-Ngu), stands out as one of the Similan Islands' most iconic dive sites.
Verified hyperbaric facilities that cover the diving areas of in Thailand. Always confirm availability locally before a trip and dive with valid insurance.
| Location | Facility | Relevant for |
|---|---|---|
| Khao Lak, Phang Nga | Hyperbaric Services of Thailand (SSS Network) | Similan Islands, Richelieu Rock, Khao Lak |
| Koh Tao | Koh Tao Hyperbaric Recompression Chamber Facility | Koh Tao, Chumphon Pinnacle, Gulf of Thailand |
| Phuket | Bangkok Hospital Siriroj Hyperbaric Chamber Facility | Phuket, Andaman day-boat and liveaboard diving |
Liveaboard diving in Thailand means more dive sites per trip: these vessels run real, bookable departures with cabins for solo divers, buddy teams and small groups. Compare boat size, cabin layout, dive deck and nitrox, then check the cheapest price per day before you book. Every Thailand dive safari below is confirmed with live availability and current operator pricing.
Conditions & practicalities
51 dive sites in Thailand — here is what the season data says about the best months, water temperature, visibility and currents, plus how divers usually get there and which fees to budget for.
FAQ
Explore the Thailand destination guide or search liveaboards that visit these sites.
