The Surin Islands are part of Mu Koh Surin National Park, located some 60 km off the west coast of Phang Nga Province and 100 km north of the Similans. It's an archipelago of 5 islands: Koh Surin Nuea, Koh Surin Tai, Koh Ri, Koh Khai, and Koh Klang. Excellent diving, snorkelling, hiking and game fishing are why most travellers come to the Surin Islands. Those hoping to find a quiet refuge from tourist traps and urban centres will be delighted with the islands' relatively untouched settings.
The main island of Surin Nuea has several bays, the largest being Ao Mae Yai on the southwest. Located on the southeast side is Ao Luek, which has shallow corals and an abundance of marine life. The national park's office and a 2-km walking path are in Ao Mai Ngam. There are good snorkelling and swimming opportunities off its long beach. Ao Chak in the north of Surin Nuea is a beautiful bay of pristine coral reefs.