This oft-described Garden of Eden awaits the intrepid hiker who traverses 11 arduous miles along sea cliff faces, through muddy coastal valleys, and across sometimes-raging streams—all the while schlepping food provisions and camping gear. The trek requires 6 to 10 hours of hiking, making it an adventure indeed. With serious planning and preparation, the effort is worth it. Another option is to paddle in to the beach—summer only, though; otherwise the surf is way too big. Located at the end of the trail with the same name, Kalalau is a remote, wilderness beach along the 15 mi of spectacular Napali Coast, itself a 6,500-acre state park. The beach is anchored by a heiau (a stone platform used as a place of worship) on one end and a waterfall on the other. The safest hiking to and swimming at the beach takes place during the summer months when the rains abate, so the trail can dry out, and when the North Shore's famous winter surf recedes, revealing an expansive beach cupped by low, vegetated sand dunes and a large walk-in cave on the western edge. Day hikes into the valley offer waterfalls, freshwater swimming pools, and wild, tropical fruits, as well as illegal campers forsaking society. Don't be mistaken: Camping permits are required. Amenities : none. Best For: solitude; sunset; nudists; walking. www.hawaiistateparks.org.