Nā Pali Coast State Park is a 6,175-acre state park in the U.S. state of Hawaii, located in the center of the rugged 16-mile northwest side of Kauaʻi, the second-oldest inhabited Hawaiian island. The Nā Pali coast itself extends southwest from Keʻe Beach all the way to Polihale State Park. The nā pali along the shoreline rise as much as 4,000 feet above the Pacific Ocean. The state park was formed to protect the Kalalau Valley.
To the east of the state park is the Hono O Nā Pali State Natural Reserve. It was established in 1983 and later extended to over 3,578 acres in 2009. Hiking trails and hunters' roads provide access to the sharp ridges from Koke'e Road in Waimea Canyon.