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Similan Islands Dive Sites 2025

The Similan Islands has some world-class scuba diving, and an array of awesome dive sites to explore by liveaboard boat. See our detailed explorations of each dive site.

Richelieu Rock

Soft corals at Richelieu Rock, Thailand
Thailand’s best dive site, bar none. A stunning array of soft corals and spectacular stampeding marine life Read More

Koh Bon

Manta Ray at Koh Bon ridge, Thailand
Thailand’s manta ray hotspot, with plenty of other things to see if the mantas don’t show up Read More

Shark’s Fin Reef

Big boulder split in half, Shark's Fin Reef, Similan Islands
A dramatic block of rock rising out of the sand, Shark’s Fin Reef is one of the Similan Islands’ most exciting sites Read More

Hideaway Bay / Tuna Wreck

The Tuna Wreck, Similan Islands
Two Similan Islands dive sites in one location, Hideaway Bay and Tuna Wreck can be experienced in a single dive Read More

West Of Eden

Giant fan corals, West Of Eden, Similan Islands
A big boulder site with spectacular outsize fan corals, beautiful soft corals and the promise of full fish activity, West Of Eden is an archetypal Similan Islands dive site. Read More

Ao Suthep, Surin Islands

Hard coral garden, Ao Suthep, Surin Islands
Ao Suthep is beautiful hard coral gardenx in the Surin Islands, often visited by Similan island diving liveaboards and accessible by snorkellers visiting the Surin Islands too. Read More

Three Trees

Giant barrel sponge, Three Trees
Three Trees, named after the three trees directly above the dive site on Similan Island 9, is a big wide white sand channel with some awesome corals and fish encounters Read More

Christmas Point

Fan corals and curved rocks, Christmas Point
One of the signature Similan Islands big boulder dive sites, Christmas Point’s huge rocks have been shaped by the tides over hundreds of years. Read More

When Can I Dive The Similan Islands?

The Similan Islands National Marine Park is open from mid-October to mid-May each year. It’s closed during monsoon season from mid-May to mid-October – no liveaboards or speedboats are allowed into the park during this time. For more details on how to plan a Similan liveaboard diving holiday and what to expect along with how to get there and where to stay, see our overview Diving The Similan Islands: A Quick Guide

Recommended Similan Liveaboards October 2024 to May 2025

Blue Dolphin Liveaboard

Blue Dolphin Liveaboard A mid-range liveaboard with 7 cabins for 16 people. Check availability and pricing

The Phinisi Liveaboard

The Phinisi Liveaboard A Similan mid-range liveaboard with 7 cabins for 18 people.Check availability and pricing

Smiling Seahorse Liveaboard

Smiling Seahorse Liveaboard A mid-range liveaboard with 8 cabins for 16 people. Check availability and pricing

The Junk Liveaboard

The Junk Liveaboard A mid-range liveaboard with 6 cabins for 18 people. Check availability and pricing
 

2025 Thailand Last Minute Liveaboard Deals

Similan Liveaboards Overview

Upcoming Similan Liveaboard Availability and Pricing

Check availability and pricing for all Similan Islands liveaboards departing in

(The Similan National Park is closed from mid May to mid October each year)

Similan Liveaboards Trip Reports

Photos from each of the Similan liveaboard trips I've been on over the years.



Diving And Travel Insurance

Considering travel insurance for your trip? World Nomads offers coverage for more than 150 adventure activities including scuba diving, as well as emergency medical, lost luggage, trip cancellation and more.

Start Planning Your Thailand Dive Trip Now!

:: Check the availability and pricing of liveaboards in Thailand and book online.


:: Find the cheapest flights to Thailand - Phuket (airport code: HKT) is the nearest airport for diving the Similan Islands. You can get direct international flights to Phuket or go via one of Bangkok's two airports - Suvarnabhumi (BKK), the main airport, or Don Mueang (DMK), the low cost carrier terminal.


:: Make sure you don't forget to bring any of the essentials for your scuba diving trip with our comprehensive Liveaboard Packing List


:: World Nomads offers simple and flexible travel insurance. Buy at home or while traveling and claim online from anywhere in the world.


:: Find available places to stay in Phuket for before and after your liveaboard on Booking.com - usually you can reserve a room with no upfront payment. Pay when you check out. Free cancellations too.


:: Need inspiration? See our Best Places To Dive In Thailand for ideas of where to go and what to do.


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World Nomads provides travel insurance for travellers in over 100 countries. As an affiliate, we receive a fee when you get a quote from World Nomads using this link. We do not represent World Nomads. This is information only and not a recommendation to buy travel insurance.