Nā Pali Coast State Park is a 6,175-acre (2,499 ha) state park in the U.S. state of Hawaii, located in the center of the rugged 16-mile (26 km) 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 (1,200 m) above the Pacific Ocean. The state park was formed to protect the Kalalau Valley.