Khao Sam Roi Yot National Park

Although it is 60km south of Hua Hin and 40km south of Pranburi, many visitors to the region spend time at this interesting national marine park. The name means three hundred mountain peaks, a reference to its numerous limestone peaks between which there are marshes and mangrove swamps. 

The mountains and wetlands contain an abundance of wildlife, including barking deer, crab eating macaque and serow, an Asian goat-antelope. 

The park is also home to more than 300 resident and migratory birds. One of the park's most popular attractions is Tham Phraya Nakhon, a cave with a hole in its roof that allows a shaft of light to shine upon a Thai-style pavilion built for King Rama V.