The Similan Islands are nine beautiful tropical islands dotted in the Andaman Sea, not too far from mainland Thailand in Khao Lak. Established as a national park in 1982, they offer some of Thailand’s best snorkeling and diving. Above water, there is also substantial wildlife, like nicobar pigeons, mangrove monitor lizard and flying fox! Islands number 1-3 are closed too all tourist activity as they are protected for turtle conservation. Island number 3 is even owned by the Thai princess. Islands number 4 and 8 are the only two islands where you can stay overnight. This can be done in simple bungalows or in tents that are already set up for you when you arrive. Similan can only be visited from November – April, since it is closed during the monsoon season. Fishing is illegal in the Similan National Park. Sadly during the monsoon season in particular, fisherman enter the park and damage coral reefs and local fish stocks. Let’s hope this situation will improve in the future. Otherwise it is an amazing place. The huge rock formations are simply stunning below and above water. I can highly recommend these islands! Try to take smaller tour operators as the larger ones are very commercial and bring with them 30+ tourists (half of them usually can’t swim :P) on one boat.