Khao Lak Lamru National Park is the closest national park from Khao Lak. The Khao Lak area is surrounded by mountains and tropical evergreen forests and waterfalls, and is a protected area.
The national park covers 4 different districts with a total area of 125 square km. The shore part of the park was damaged by the Tsunami of 2004, now completely regrown with no trace left. The highest mountain of the park peaks at 1,077 metres. Two main rivers cross the area, the Phang Nga and the Takua Pa. Along these rivers a large ecosystem of mangrove attracts animal and marine life. The most commonly visited part of Khao Lak Lamru National Park, is the cliff side just 3 km south of Khao Lak.