The seashore can also be accessed by private boat or by ferry from the communities of Patchogue, Sayville, and Bay Shore on Long Island.

The William Floyd House is listed on the National Register of Historic Places and is located in Mastic Beach, New York.

The United States Congress designated the Otis Pike High Dune Wilderness Area in 1980.

The wilderness area is named for former New York Congressman Otis G. Pike, who co-sponsored the bill which created the Fire Island National Seashore and worked hard to secure public support and the legislation's passage through Congress to establish the new national park.

[5] The wilderness includes pine forests, grassy wetlands, and dunes that serve as habitat for white-tailed deer, herons and migratory waterfowl.

[8] Old Inlet, just west of Smith Point County Park in the wilderness, has been the site of breaches of Fire Island causing the Atlantic Ocean to join with the Great South Bay.