Run Kauai's Forbidden Coast
Janji's Trail Runner's Handbook maps the Kalalau Trail along the Na Pali Coast. Some routes are worth the plane ticket.
The Kalalau Trail cuts along Kauai's Na Pali Coast, emerald cliffs dropping straight into the Pacific, and Janji publishes a field guide for running it in the Travelogue's Trail Runner's Handbook series.
The series also covers San Francisco and New York City, but Kalalau is the one that reads like a dare: a running brand handing out route beta for paradise.
Via Janji Travelogue.