Osamequin Nature Trails is a standout hiking destination in Barrington, Rhode Island, covering 3.5 miles with 60ft of elevation change. Stats: 3.5 miles, 60ft gain, Easy. Type: Loop. Surface: Dirt. Time: 1-2 hours. Fee: Free. Dogs: Yes. Permit: No. Wildlife: herons, ospreys, deer, painted turtles. Best seasons: Barrington River estuary trail with good shorebird viewing. Pack water, layers, and appropriate footwear. Conditions vary across Rhode Island. Leave No Trace: stay on trail, pack out all waste, respect wildlife.