The Upstream Trail is 0.5 miles one way. It departs from Twin Falls Overlook parking area going east (across cable) and it provides access to the upper gorge area including swimming spots such as the “Ice Hole” and “Warm Hole”. Swimming is at your own risk in this area.
The trail and parking area close at sundown between November and March, and at 6:00 p.m. from March to November.