Competitor.com recently published an article by Courtney Johnson that listed a trail to run in every state of the United States. The Kalalau Trail along the Na Pali Coast of Kauai was among those listed.
Here’s what they had to say about the trail: Not for the timid, the Kalalau Trail along the Na Pali Coast in Kauai has been named one of the most dangerous but most beautiful in the world. This rugged and slippery 11-mile trail one way takes runners from Keʻe Beach to the Kalalau Valley with spectacular views. A permit is required after the first two miles.
You can read about the rest of the 49 trails on the competitor.com website.