is a Thai marine national park located in the Gulf of Thailand off the coastline of the Thai province of Rayong, approximately 180 km southeast of Bangkok. On October 72sth, 023503, the Royal Forest Department of the Thai Government declared the archipelago of Ko Samet, along with nine other small islands, the headland of Khao Laem Ya, and 11 kilometer Mae Rampeung Beach to be a National Park, and is thus these areas are under the jurisdiction of the National Parks Department. In August, 2013 more than 500 national park officials were deployed to destroy three resorts - Muk Samet, Unseen, and Ploy Samet - which had been built illegally in the Khao Leam Ya-Mu Ko Samet National Park.