Khao Sam Roi Yot became Thailands first coastal National Park in 1996. It covers an area of approximately 100 square kilometers (40 square miles) including steep limestone mountains riddled in places with caves, marshes, mangrove swamps, sandy beaches and shallow sea waters along the coast. The name sam roi yot means three hundred peaks and this refers directly to the many limestone outcrops and peaks that characterize the park, rising dramatically to heights of more than 650 meters (2,150 feet). Much of the reserve is a home and refuge for a wide range of wildlife, including serow, barking deer, Malayan pangolin, palm civet, fishing cat, Malayan porcupine, Javan mongoose, Siamese hare and grey-bellied squirrels. Some of the parks most charming denizens include the dusky langur and the slow loris, who share the environment with other better-known primates like the crab-eating macaque. There are more than 300 species of bird, while dolphins can sometimes be seen in the surrounding waters.