NÄulu Trail is a 6.4 mile lightly trafficked out and back trail located near Hawaii National Park, HI that offers scenic views. The trail is rated as moderate and primarily used for hiking, walking, and nature trips. 6.4 miles 1305 feet Out & Back hiking nature trips walking views Expand Map Sign up now to see this map! Reviews (0)Photos (1)Recordings (1)No one has reviewed this trail yet. Be the first!