High Quality Content by WIKIPEDIA articles! N? Pali Coast State Park encompasses 6,175 acres (2,499 ha) of land and is located in the center of the rugged 16 miles (26 km) along the northwest side of Kaua?i, the oldest inhabited Hawaiian island. The N? Pali coast itself extends southwest starting at Ke?e Beach extending all the way to Polihale State Park. The pali (cliffs) rise as high as 4,000 feet (1,200 m) above the Pacific Ocean. The state park was formed to protect the Kalalau Valley. Although inaccessible to automobiles, this coast can be enjoyed by hiking, boating (often in kayaks) or from a helicopter. The Kalalau Trail provides the only land access, traversing 11 miles (18 km) and crossing five major valleys (and countless smaller ones) before reaching Kalalau Beach at the base of Kalalau Valley.