The Similan Islands are one of the world’s most famous diving destinations. The protected waters, in the Andaman Sea about 40 miles from Thailand’s west coast, contain abundant marine life ...

Island 8, also known as Koh Similan, southeast of mainland Thailand, welcomed the first batch of tourists on October 15 after the area was closed for the rainy monsoon season.

Mu Ko Similan National Park has been attracting about 2,000 visitors daily. It is a fairly remote chain of 11 islands, noted for top class diving and attracts a large number of liveaboard dive ...

For more information visit Dive The World. 2. Similan Islands, Thailand Clownfish -- unaffected by anemone poison, but climate change is a different matter. tarik tinazay/afp/getty images ...

Divers conduct line transect surveys of coral reefs at deep diving sites such as Koek Bay and Hin Hua Tua near Ko Similan (Island No. 8) to collect data on coral recovery without tourism impact.

The Similan Islands will be closed annually from May 16 to October 14, with the 2025 closure starting tomorrow. Upon reopening, a new E-Ticket system will require advance planning for tourist visits.