Surin Islands are one of the most famous diving and marine life viewing sites in the world, no doubt the best in Thailand. 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, snorkeling, hiking, and game fishing are why most travelers come to the Surin Islands. Those hoping to find a quiet refuge from tourist traps and urban centers will be delighted with the islands' relatively untouched settings.