Reynolds Channel is a strait in Nassau County, New York that separates Long Beach Barrier Island, which contains the City of Long Beach and the villages of Atlantic Beach, Lido Beach, and Point Lookout, from Long Island, Barnum Island, Harbor Isle, and various uninhabited islands between Long Beach Island and Long Island. The channel begins at the East Rockaway Inlet to the west, and ends at Point Lookout to the east, where it merges with the Jones Inlet.