St. Croix State Park Loop is a standout hiking destination in Hinckley, MN, covering 12.0 miles with 600ft of elevation change. Stats: 12.0 miles, 600ft gain, Moderate. Type: Loop. Surface: Dirt. Time: 5-6 hours. Fee: $7/vehicle. Dogs: Yes, on leash. Permit: No. Wildlife: deer, bears, turkeys. Best seasons: Largest state park in Minnesota. Pack water, layers, and appropriate footwear. Conditions vary across MN. Leave No Trace: stay on trail, pack out all waste, respect wildlife.