Delaware Seashore State Park stretches south from Dewey Beach along a thin barrier spit between the Atlantic Ocean and the inland bays. It is one of the busiest state parks in Delaware, drawing swimmers, anglers, kayakers, and kiteboarders to its six miles of ocean beach and extensive bay access. The park is managed for recreation rather than strict nature preservation, which means the facilities are good — parking areas, bathhouses, and boat launches are well maintained.
Indian River Inlet, about four miles south of Dewey Beach, is the standout feature. The inlet cuts through the barrier spit and creates a rush of current that concentrates fish and attracts serious anglers. The bridge spanning the inlet is famous on the Mid-Atlantic fishing circuit. Beyond the inlet, Burton's Island nature trail offers a short walk through salt marshes with good birdwatching. Four-wheel-drive vehicles can access the beach south of the inlet for surf fishing, with a permit.