Fabulous trail! Very lush and many water crossings. Well-maintained. We log 2.8 miles in a hangman's noose configuration. The redwood nature trail loop had a gain of about 568 feet. Take it to the right for a gradual uphill or to the left for a steep uphill and gradual downhill. The interpretive markers start to the left. Both trails have interpretive markers with the one along the river being letters starting at the day use area the Redwood loop being numbers but the trailheads were out of brochures. Great place to come for a quick hike or just a stroll in the Redwoods and along the river!