2025Diving in Similan Islands|trip.com

Located in the Andaman Sea in western Thailand, the Similan Islands consist of nine main islands and are known as the "Nine Islands Country".. It is famous for its clear and transparent waters, colorful coral gardens and rich marine life.

Unique creatures and landscapes:The sea is filled with giant sea fans, endless coral reefs and strange rocks, and dense schools of fish: plaice, four-line snappers, barracudas, whale sharks, manta rays, dolphins, etc. There are thousands of them, with ever-changing species, like a kaleidoscope that is dazzling.

Excellent visibility:The underwater visibility in the Similan Islands is extremely high, averaging 25-35 meters. The clear waters seem to reflect the entire world crystal clear, allowing divers to clearly see the underwater scenes in the distance and enjoy an unparalleled diving experience.

Comfortable Air and Water Temperature:The air and water temperatures of the Similan Islands are kept within a comfortable range throughout the year, approximately between 27-29°C. The best diving season is from November to May of the following year, and landing is prohibited on the islands during the rest of the year.

Advanced Difficulty:Similan Islands diving is mainly based on liveaboard diving trips, which are highly maneuverable and can fully experience the characteristics of each dive site. The environment is relatively primitive and more suitable for experienced divers with more than 50 dives.

When diving here, you can explore shallow coral reefs, deep sea cliffs, granite boulder terrain, caves and shipwreck sites and other diverse underwater landscapes, and experience unprecedented diving fun.