With its towering sea cliffs and its many waterfalls, Napali Coast State Wilderness Park is one of the most spectacular and recognizable coastlines in the world. Camping permits are only issued for Kalalau Valley, which is located at the end of a steep 11-mile hiking trail, but hikers can also stop halfway and spend a night in Hanakoa Valley if doing the entire hike in one day is too demanding. Both sites have composting toilets, but no drinking water is available and campers will have to pack out their own garbage. Reservations are required, and permits often book up months in advance.

Napali Coast State Wilderness Park, Kapa?a, HI 96746, Phone: 808-274-3444