Shaped by storm and tides, Island Beach State Park is a narrow barrier island stretching for 10 miles between the restless Atlantic Ocean and the historic Barnegat Bay. Island Beach is one of New Jersey's last significant remnants of a barrier island ecosystem that once existed along much of the coast and is also one of the few remaining undeveloped barrier beaches on the north Atlantic coast. Over 3,000 acres and 10 miles of coastal dunes remain almost untouched since Henry Hudson first described New Jersey's coast from the ship, the Half Moon, in 1609.