Ko Samui
The name of the park refers to the two major parts of the park. Hat Khanom refers to the beaches of Khanom District, and the Thale Tai archipelago consists of eight islands in the Gulf of Thailand (Ko Mut Tang, Ko Mut Kong, Ko Rap, Ko Hua Ta Khe, Ko Wang Nai, Ko Wang Nak, Ko Noi, and Ko Ta Rai, all in the Sichon and Khanom District, Nakhon Si Thammarat Province, and Ko Samui District, Surat Thani) between Khanom and Ko Samui.