Thailand

Thailand · Andaman Sea

Thailand’s Best Diving — Similan & Surin Liveaboards

World-famous Richelieu RockMantas & whale sharksBeginner-friendly
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Crystal-clear Andaman water, granite pinnacles, and the world-famous Richelieu Rock. A Thailand liveaboard from Khao Lak or Phuket is the best way to reach the Similan and Surin Islands — far from shore, first in the water, and diving multiple times a day.

A Liveaboard for Everyone Aboard

Scuba Divers

Up to 4 dives / day

Beginners Welcome

Snorkelers

Macro & Photo

Freedivers

You Can Dive

The Andaman’s Signature Sites

Richelieu Rock pinnacle, Surin Islands, Thailand

Richelieu Rock

Thailand’s crown jewel — a pinnacle bursting with life.

Manta ray at Koh Bon, Thailand

Manta Rays

Koh Bon is the region’s renowned manta hotspot.

Whale shark at Richelieu Rock, Thailand

Whale Sharks

Seasonal giants, often around Richelieu Rock.

Similan Islands granite boulders and coral reef, Thailand

Similan Reefs

Granite swim-throughs, coral gardens, white-sand bays.

Note: the Similan & Surin National Marine Parks are only open to divers from roughly mid-October to mid-May. Liveaboards run through this window, so plan your Thailand dive trip within the season.

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Hot Picks

Liveaboards We Recommend in Thailand

The Junk liveaboard, Thailand

The Junk

A characterful classic sailing the Similan and Surin route.

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Krishna 3 liveaboard, Thailand

Krishna 3

Comfortable and well-run for Andaman Sea itineraries.

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Charter or Join?

Join a Cruise

Book a cabin on a scheduled Similan and Surin liveaboard — the easiest way to dive Richelieu Rock and Koh Bon.

Charter Your Own Boat

Take the whole boat for your group and shape your own Andaman Sea route and schedule.

Want a special offer for Thailand?

Message us directly — the season is short, so the best dates go early.

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Get Ready

Before You Book Your Thailand Liveaboard

Solo traveler on a liveaboard

Going Solo on a Liveaboard

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Liveaboard seasickness tips

Seasickness: What Actually Works

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Diving bag and equipment for a liveaboard trip

What to Pack for a Liveaboard

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Why BookDiveBoat for Thailand?

The Similan and Surin Islands sit far from the mainland, which is exactly why a liveaboard beats day trips — more dives, less travel, and the first boats on the best sites. We work with trusted Andaman Sea boats and crews so you get the most out of a short, world-class season.

FAQ

Thailand Liveaboard Questions

When is the Thailand liveaboard season?
The Similan and Surin National Marine Parks are open to divers from roughly mid-October to mid-May, and liveaboards run throughout this window. The parks close for the rest of the year, so trips must be planned within the season.
What is Richelieu Rock?
Richelieu Rock is a submerged pinnacle near the Surin Islands, widely regarded as Thailand’s best dive site and one of the finest in the world, famous for soft corals, huge fish schools, seahorses, and seasonal whale sharks.
Can I see mantas and whale sharks in Thailand?
Yes, though sightings are never guaranteed. Koh Bon is the region’s best manta hotspot, while whale sharks favour Richelieu Rock and appear several times each season, with the best chances typically from January to May.
Is Thailand good for beginner divers?
Very much so. Alongside the deeper, current-swept pinnacles, the Similan Islands have plenty of easy, shallow, colourful reefs, which makes Thailand one of the most popular destinations for a first liveaboard.
Where do Thailand liveaboards depart from?
Most Similan and Surin liveaboards depart from Khao Lak or Phuket, both easily reached from Phuket International Airport, with transfers usually arranged by the boat operator.
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