← Travel journal

Thailand · Nature & Beaches

Diving Around the Similan Islands and Northern Andaman

The Similan Islands are a protected national-park area off Thailand’s Andaman coast, known for granite formations and marine life.

Vietnam Tour Fun2 min read

The Similan Islands are a protected national-park area off Thailand’s Andaman coast, known for granite formations and marine life. Diving is seasonal, and access to individual sites can change for conservation or weather reasons.

Dive sites on Similan and northern Andaman itineraries

Elephant Head Rock

Large granite formations give this site its distinctive name.

Boulders and channels create an impressive underwater landscape. Your guide should choose a route appropriate to the conditions and your training.

Discuss currents, depth and experience requirements with your dive operator.

Richelieu Rock

Richelieu Rock belongs to Mu Ko Surin National Park, rather than the Similan Islands, but often appears on longer northern Andaman dive itineraries.

Its marine life makes it a popular stop for photographers. Larger animals may occasionally be seen, but sightings are never guaranteed.

Suitability depends on conditions, training and the operator’s assessment.

Christmas Point

Granite boulders and channels are the main attraction.
Granite boulders and channels are the main attraction.

Look for reef life among the formations while following your guide’s route and depth limits.

Confirm the required experience level before booking.

East of Eden

A well-known reef site whose access has changed during conservation closures.
A well-known reef site whose access has changed during conservation closures.

Ask your operator whether it is open and included in the current itinerary. Do not assume a historic site list guarantees access.

Choose dives suited to your certification and recent experience.

West of Eden

A rocky site on the western side of the island.

Its varied terrain offers opportunities to observe reef fish and smaller marine life, depending on conditions.

Currents and depths require an individual suitability assessment.

Book with a qualified operator, confirm park access and seasonal closures, and follow guidance on buoyancy and avoiding contact with coral. A flexible itinerary gives the crew room to choose suitable sites.

For time on the Andaman coast, explore Thailand Island Hopping — 9 Days in Phuket, Phi Phi and Krabi. Use the itinerary as a starting point and discuss the right season and island stops with our team.