Siam Similans
The Similan Islands
Thailand's crown jewels - liveaboard safaris to the Andaman's best dive sites, aboard a hand-picked fleet.
Choose your liveaboard
A hand-picked few - the trips we send our divers on again and again.
Similan & Richelieu Rock
5 days · 4 nights · 14 dives
Similan Islands → Koh Bon → Koh Tachai → Richelieu Rock
Best of the Andaman
7 days · 6 nights · 22 dives
Similan, Richelieu, Koh Haa, Hin Daeng & more
South Andaman
4 days · 3 nights · 11 dives
Koh Phi Phi, Koh Haa & King Cruiser Wreck
Our fleet
Three boats, three styles - all running the same world-class routes.
MV Raga
Luxury flagship · 28 guests · renovated 2024
MV Gentle Giant
Classic wooden expedition · 20 guests · best value
MV Aqua
Free Nitrox · 24 guests · most versatile
Boats operated by Smile Dolphin Diving · photos courtesy of the operator
Andaman dive sites
The legendary sites you'll explore on these trips.
Koh Bon
A manta ray cleaning station - ridge and wall diving for pelagics.
Richelieu Rock
Thailand's most famous dive - whale sharks, seahorses and a riot of macro life on a horseshoe pinnacle.
Koh Tachai
A current-swept pinnacle drawing schooling fish and big pelagics.
Elephant Head Rock
Iconic Similan granite boulders, swim-throughs and arches.
Boonsoong Wreck
A tin-dredger wreck off Khao Lak, packed with macro critters.
What's included
- Free hotel transfers from Khao Lak & Phuket
- Full-board meals, snacks & drinks on board
- Tanks, weights & divemaster guiding
- Wi-Fi on board (free Nitrox on MV Aqua)
Good to know
- Open Water minimum; Advanced or 20+ dives recommended for Richelieu Rock
- Departures from Tab Lamu Pier (Phuket / Khao Lak area)
- National park fees & gear rental not included
- Book now, pay later - reserve your spot with no upfront payment