Game and Nature Reserves Game and Nature Reserves Mu Ko Ang Thong is a marine national park in the Gulf of Thailand in Surat Thani Province. It covers 42 islands in a total area of 102 km², of which about 50 km² are land and the rest is water. Samui Elephant Sanctuary is the 1st ethical elephant sanctuary on the island. The inspiration for Samui’s new sanctuary comes from the sanctuaries in northern Thailand Chaing Mai. Hin Lad Waterfall Secluded: waterfall amid trees & jungle foliage with swimming & a nearby elephant reserve.