Similan Islands Snorkeling Trip From Phuket

This 11-to-12-hour speedboat day trip runs from Phuket to several stops inside the Similan Islands National Park, covering Similan Island (Koh 8) and Bangu Island (Koh 9) plus a climb to the viewpoint at Sail Rock. Groups are capped at 45, and the day includes multiple in-water stops rather than a single anchor point, so time in the water adds up even though transit and lunch eat into the long day.

A light breakfast and gear fitting start the day after hotel pickup, ahead of the boat’s first stop and a Thai buffet lunch taken partway through. Snorkeling and swimming happen at each island stop; the itinerary also lists a walking option on Similan Island for anyone who’d rather explore the beach on foot before or instead of getting in the water. The national park entry fee (400 THB per adult, 200 THB per child aged 4–11) is charged separately and isn’t part of the tour price.

Watch out: The operator’s booking process asks for a passport copy soon after booking, to buy the park entry ticket in advance. Have that ready rather than waiting until departure day. Thailand’s national marine parks also close seasonally during the monsoon; current closure dates aren’t confirmed, so confirm the Similan Islands are open for the travel date directly with the operator before booking.

Insider Tip: Bring a hat, sunscreen and a change of clothes: the day is long, mostly outdoors, and there’s no shade once ashore on the islands.

The multi-island itinerary, three separate snorkel stops plus a viewpoint climb, makes for a reasonably full day at this price.