The Kalalau Trail is a trail along Nā Pali Coast of the island of Kauai in the state of Hawaii. The trail runs approximately 11 miles (18 km) along the island's north shore from Keʻe Beach to the Kalalau Valley. The trail has been named one of the most beautiful, and dangerous, hikes in the world.
Expert hikers can complete the roundtrip 22 mile trek as a day hike, but the average hiker requires a two-day minimum and will camp along the trail. Camping is only permitted at a forested streamside campsite Hanakoa Valley (6 mile mark) and Kalalau Beach.
The first section of the trail is a two-mile (3 km) stretch from Keʻe Beach to Hanakapiai stream and beach. This section is moderately strenuous and doesn't require a camping permit. The next section connects Hanakapiai stream to Hanakoa Valley, six miles from the trailhead. To continue past Hankapiai Beach to Hanakoa Valley you need to obtain a camping permit from the Hawai'i Department of Land and Natural Resources. No day-use permits are issued, and only hikers with valid camping permits may legally proceed beyond the sign. Violation of this rule is a petty misdemeanor under Hawaii law, and a conviction will result in a criminal record in addition to penalties.
Hanakoa Valley contains Hanakoa Falls and stream but the valley is a hanging valley with no access to the beach. The trail to Hanakoa Falls is not well maintained and sometimes difficult to follow. The trail begins after the Hanakoa stream crossing, just before the covered shelter.
The trail continues on to Kalalau Valley, a large, flat-bottomed valley almost a mile across. After hiking down Red Hill, it is about a half mile to Kalalau Beach requiring crossing Kalalau stream.
Camping permits are only issued for Kalalau Beach and are limited to 5 consecutive nights. Hikers are allowed to camp at Hanakoa Valley one night with a valid Kalalau permit.