Khao Sam Roi Yot, which translates roughly to "the mountain with three hundred peaks," protects the largest wetlands area in Thailand, a freshwater marsh that comprises over a third of the national park's total area. Outdoor enthusiasts come to the park to explore its beaches, caves and marshlands, where an estimated 300 species of birds make their home for all or part of the year. Other park residents include crab-eating macaque, barking deer, Malayan pangolin, dusky leaf monkey, fishing cats, wild elephants and guar.
Apart from the wildlife, the park's most popular feature is Phraya Nakhon Cave, arguably one of the most spectacular caves in all of Southeast Asia. Its spectacular chamber houses a stunning gold and green pavilion "” a sight that few visitors to Thailand are lucky enough to see for themselves.
Mosquitos can be a nuisance in the park, particularly during the rainy season, so don't forget to bring bug spray.