Discover the Surin Islands, a pristine marine national park in Thailand. Plan your trip for world-class snorkeling, diving with manta rays, and visiting the Moken sea gypsies village. https://www.grandmercurekhaolakbangsak.com/beachfront-resort-in-khao-lak-grand-mercure-khao-lak-bangsak/travel-tips/surin-islands/