Cascade River Loop is a standout hiking destination in Cascade River State Park, MN, covering 7.0 miles with 700ft of elevation change. Stats: 7.0 miles, 700ft gain, Moderate. Type: Loop. Surface: Rocky. Time: 3.5 hours. Fee: $7/vehicle. Dogs: Yes, on leash. Permit: No. Wildlife: moose, bears, eagles. Best seasons: Multiple waterfalls on the North Shore. Pack water, layers, and appropriate footwear. Conditions vary across MN. Leave No Trace: stay on trail, pack out all waste, respect wildlife.