Knucklehead Canyon (Wailua Nui Stream)

A short and scenic canyon with strong flow most of the year. The provided map and GPS coordinates are for the "Left Fork" section of the canyon, dropping into the canyon earlier will put you into the main section of the canyon. The "Left Fork" is considered the more beautiful and technically challenging section of the two options.

This route requires a vehicle shuttle. Park your exit vehicle NE (uphill) of the bridge, in a small gravel turnout on the west (left) side of the road at 20.832567, -156.138134. Continue up Hana Hwy to the east to a small gravel turnout at 20.822316, -156.136210, walk up to and around the gate and continue up the steep gravel road.

Drop into the canyon anywhere in the vicinity of the bridge crossing the stream at: 20.824960, -156.144853

Hike back up to the bridge at Hana Hwy, then drive back east to your trailhead vehicle.