Delaware Seashore State Park Trail is a standout hiking destination in Rehoboth Beach, Delaware, covering 4.5 miles with 20ft of elevation change. Stats: 4.5 miles, 20ft gain, Easy. Type: Loop. Surface: Sand. Time: 2 hours. Fee: $4-10 park fee. Dogs: Yes. Permit: No. Wildlife: shorebirds, harbor seals, deer, ospreys. Best seasons: Atlantic Ocean barrier island trail between Rehoboth and Indian River bays. Pack water, layers, and appropriate footwear. Conditions vary across Delaware. Leave No Trace: stay on trail, pack out all waste, respect wildlife.