Hawaii 's Rock Climbing Source
C omplete rock climbing source, providing locations, gear, news and more.
http://www.rockclimbinghawaii.com

Na Ala Hele - Hawaii Trail System & Access
Explore the state's official organization which governs access to and the maintenance of the public trail system.
http://www.hawaiitrails.org

The Hawaiian Trail and Mountain Club [HTMC]
Oahu based hiking club founded in 1910 to explore and enjoy Hawaii
http://www.htmclub.org