Immediately south of Hat Khao Lak, this vast 125-sq-km park is a collage of sea cliffs, 1000m-high hills, beaches, estuaries, waterfalls, forested valleys and mangroves. Wildlife includes hornbills, drongos, tapirs, serows, monkeys, Bengal monitor lizards and Asiatic black bears.
The park office and visitors centre, 3km south of Khao Lak proper, off Hwy 4, has little printed information, but there’s a scenic open-air restaurant perched on a shady slope overlooking the sea. From here, there's a fairly easy 3km (one-hour) round-trip nature trail south along the cape to often-deserted Hat Lek.