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  • Address: Similan Islands National Park, Southern Thailand and Andaman Coast, Thailand
  • Hours: Open Mid-October to mid-May

Southern Thailand and Andaman Coast ATTRACTIONS See all

Similan Islands National Park Tours

The Similan Islands National Park refers to a chain of 11 islands located around 70 kilometers off the west coast of Southern Thailand. The waters that surround these islands are generally regarded as the best areas for snorkeling and diving in the country.

Fringed with white coral-sand beaches, and with bamboo, jackfruit, and gum trees forming much of their dense innards, the Similan Islands are home to mangrove monitor lizards, nicobar pigeons, and crab-eating monkeys. One of the most striking features of the islands are the huge boulders scattered across the shores of several of them, with the same type of boulders beneath the water turning the islands’ underwater world into something of an adventure playground for snorkelers and divers.

The best way to enjoy all that the Similan Islands have to offer is to take a full-day tour from Phuket or Krabi. These usually include lunch, snorkeling alongside rays, sharks, and various fish and coral species, plus free time to explore the islands and relax on their beaches. Certified divers looking to explore the islands can choose from a full-day or two-day trip to a dive site of their choice, with meals and round-trip transportation included.

Practical Info

The Similan Islands are officially open to the public from mid October until mid-May, but dates may vary each year, so it’s best to check when planning your visit.

Did You Know? ‘Similan’ derives from the Malay word, ‘sembilan’, meaning ‘nine’, which was the original number of islands in the national park. In 1998, the park was expanded to include Ko Bon and Ko Tachai. While each island is named, they’re still more commonly referred to by their numbers.

Tours & Tickets

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Full-Day Similan Island by Speed Boat from Phuket, Phuket, null

Full-Day Similan Island by Speed Boat from Phuket

5 star rating: Highly Recommended 18 Reviews

Long white coral sand beaches surrounded by crystal clear water is what you will find in The Similan Islands National Park. This day trip from Phuket, with ...  Read more

Location: Phuket, Thailand
Duration: 11 to 12 hrs

From USD $125.30
Full-Day Speedboat Snorkeling Tour to Similan Islands from Khao Lak, Khao Lak, Jet Boats & Speed ... 

Full-Day Speedboat Snorkeling Tour to Similan Islands from Khao Lak

Enjoy this 8-hour snorkeling tour Khao Lak and admire the breathtaking views of the Similan Islands. Discover the colorful seascapes and rich marine life. ...  Read more

Location: Takua Pa, Thailand
Duration: 8 hours (approx.)

From USD $107.16

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