Hikers on the Kalalau Trail Hank climbing on Crawlers Ledge Hikers on the Kalalau Trail Kalalau Trail Details Backpack: Tropical Kauai, Hawaii 4 days 25.2 miles 6,170 ft gain — 6,170 ft loss 69 ft min — 774 ft max Physical Challenge 8 of 10 Psychological Challenge 7 of 10 Beauty 10 of 10 Uniqueness 10 of 10