The most interesting sights are to be found beneath the waves. Some of the most spectacular coral growths in the world can be found here - and the same boulders that scatter the shores have turned the waters around the Similans into an adventure playground for divers. Snorkelling the Similan Islands is one of the most common ways to discover the islands. Sometimes on giant snorkeling boats operating daily, to the more intimate nights on the Similans in your own tent or bungalows.