Marine atlas
Explore the
Similan Islands
A marine park in Thailand’s Andaman Sea
Granite islands, turquoise water and extraordinary marine life. Find out where the Similans are, how to reach them and which island experience is right for you.
Where it is
A world of blue,
just offshore
The Similan Islands lie in the Andaman Sea off Thailand’s Phang Nga coast. Protected as a national marine park, the islands are known for pale sand, striking granite boulders, clear water and colourful reefs.
The journey
Getting there is part of the adventure
Most Similan day trips travel by road to Thap Lamu Pier, then continue by boat into the national park. Your exact pickup, pier and boat journey depend on the trip and conditions.
Hotel pickup
Start from Phuket or Khao Lak
Thap Lamu Pier
Travel north along the coast
Boat crossing
Head out across the Andaman Sea
The Similans
Explore islands and clear water
Marine life
A place to meet sea turtles
The Similan Islands’ protected waters are home to green and hawksbill turtles. Spotting one gliding past a reef can be a moment you remember long after your holiday.
Keep a respectful distance and let wildlife move freely. Every encounter is a possibility, never a promise.
Scuba day trip
For certified divers who want a full day exploring the Similans underwater.
Explore scuba day trip
Snorkelling day trip
Float over colourful reef life and enjoy the islands from above the water.
Explore snorkelling
Liveaboard diving
More time on the water, more diving and a deeper Andaman adventure.
Explore liveaboardsQuick answers
Plan with confidence
Start with the essentials, then use each trip page for inclusions, suitability, availability and booking details.
Do I need to be a certified diver?
Yes, for a scuba day trip or diving liveaboard. You do not need scuba certification for a snorkelling trip. Check the specific trip page for its full suitability requirements.
Can beginners go snorkelling?
Snorkelling does not require scuba certification. Check the snorkelling trip page for the activity details and tell our team about any swimming concerns before booking.
How do you reach the Similan Islands from Phuket?
Day trips usually include a road transfer north to Thap Lamu Pier and then a boat crossing. Journey times vary with your pickup point, route, sea conditions and the specific trip.
Will I see a turtle?
Green and hawksbill turtles live in the area, and an encounter is possible while diving or snorkelling. Wildlife sightings can never be guaranteed.
National park access and trips depend on the park’s seasonal opening and sea conditions. See the trip page for current operating details or ask Thailand Divers.