iking.org focus: Hiking trails around the world
The Kalalau Hiking Trail – Hawaii, USA
Text and drawing by Frits Ahlefeldt, Hiking.org
This coastal hiking trail along the North shore of the island Kauai is only 11 miles / 18 km. long but done as a round trip most hikers do the 22 miles in 2-3 days. The Kalalau trail is considered very difficult, despite its short length

Links:
Wikipedia: Kalalau Hiking Trail Hawaii on Wikipedia
YouTube:
I Recommend this short 6:41 minutes intro to the Kalalau Trail by William Jans:
YouTube Video: Kalalau Trail by William Jans
But check out the rest of the Youtube videos about the Kalalau trail too:
https://www.youtube.com/results?search_query=kalalau+trail