The park was created by the breach of the barrier island during the Great Atlantic Hurricane of 1938.
It contains a 2,500-foot-long jetty that serves as a prominent spot for surf fishing.
The park is part of the Fire Island National Seashore complex, acting as its easternmost access point.
The area is a critical habitat for the endangered piping plover and least tern during nesting season.
The Moriches Inlet, adjacent to the park, is a high-energy tidal channel connecting the bay to the Atlantic.
Cupsogue Beach County Park is a 296-acre barrier island beach located on the eastern tip of Westhampton Island. The park serves as a gateway to the Moriches Bay estuary and the Atlantic Ocean. It features a designated area for oceanfront swimming protected by lifeguards during the peak season. The park provides specialized facilities for self-contained camping vehicles. Anglers utilize the park's bay-side access for saltwater fishing. The geography consists of shifting sand dunes and sensitive coastal habitats. It is a recognized site for observing nesting shorebirds, including the piping plover. The park is managed by Suffolk County Parks and provides public restrooms and a concession stand. Access is controlled via a parking permit system during the high season.
The tip of the jetty at sunset, providing a clear view of the inlet meeting the Atlantic Ocean.
Check for local beach status updates regarding rip current conditions before entering the water.
Utilize the western side of the beach for a more secluded atmosphere away from the main pavilion.
Bring polarized sunglasses to better spot fish activity near the jetty.
Do not attempt to swim in the Moriches Inlet channel due to dangerous tidal currents.
Parking permits are required for entry during the summer season; camping is available by reservation only and is subject to seasonal closures.
Carry-in/carry-out trash policy is strictly enforced; keep off the dunes to protect fragile vegetation.
