Q. Where is the best place to snorkel in Thailand? The Similan Islands has the clearest water, the biggest fish and the largest schools of fish. This is the closest you can get to being inside an aquarium. Turtles are common here. The Surin Islands are less visited than the Similan Islands and the hard corals are better. Reefs are shallower too so it’s ideal for snorkeling. Phi Phi Islands has a huge Read More …