Napali Cliffs, Kauai, Hawaii

The Na Pali Coast State Park encompasses 6,175 acres  of land and is located in the center of the rugged 16 miles  along the northwest side of Kauaʻi, the oldest inhabited Hawaiian island. The Na Pali coast itself extends southwest starting at Keʻe Beach extending all the way to Polihale State Park. The na pali (high cliffs) along the shoreline rise as much as 4,000 feet above the Pacific Ocean. The state park was formed to protect the Kalalau Valley. Although inaccessible to vehicles, this coast can be enjoyed over land by hiking or in a helicopter, and from the ocean by kayak and paddleboard. Charter tours are available on rigid-hulled inflatable boat or catamaran, originating from Port Allen and Hanalei Bay. The Kalalau Trail from the end of Hawaii Route 56  provides the only land access along the coast, traversing 11 miles and crossing five major valleys  before reaching Kalalau Beach at the base of Kalalau Valley.  Source