Thailand Liveaboard Departures September 2025

The Similan Islands are currently open until 15 May 2026

For more information on the best time to go to the SImilan Islands click here.

Thinking of diving in Thailand in September 2025?

This page lists all liveaboard trips departing during September. Browse through our featured boats, read a quick overview of each, and check the schedule to find your perfect Thailand diving adventure.

Thailand Aggressor

Dive Thailand’s best with the Thailand Aggressor. Explore the Similan Islands and Richelieu Rock during the high season, or venture south to Hin Daeng and Koh Haa in the low season. This spacious and well-equipped yacht offers comfort, great food, and world-class diving.

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The Junk

A legendary vessel with a rich history, The Junk offers Similan liveaboard trips with excellent diving, experienced guides, and a unique atmosphere. Known for its role in a James Bond film, this charming schooner delivers safety, comfort, and great food while exploring Thailand’s best dive sites.

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Want to know more about why you should choose a multi day? We have provided some extended information about why choosing a Similan liveaboard is the best way to dive the Similan Islands.