Laem Son National Park is located in Ranong and Phangnga provinces, Thailand. It is situated 60 kilometres (37 mi) south of Ranong on the country's west coast, with 100 kilometres (62 mi) of Andaman Sea coastline, making it Thailand's longest protected shore. The marine national park is named after the pines along the cape's shore. It was established in 1983, and is 196,875 rai ~ 315 square kilometres (122 sq mi) in size.