Marconi Beach is part of the Cape Cod National Seashore in Massachusetts. The beach is named for Italian inventor Guglielmo Marconi. In 1903, the first transatlantic wireless communication originating in the United States was successfully transmitted from nearby Marconi Station; a message from U.S. President Theodore Roosevelt to King Edward VII of the United Kingdom. The beach was also used by the former Camp Wellfleet for artillery and rocket testing.
There is a broad, sweeping view of the Atlantic Ocean and Cape Cod Bay from the overlook atop the steep sand cliff above the beach. The National Park Service has built a display on-site that describes the history of wireless telegraphy, though parts have been removed due to beach erosion.
Address United States
Coordinates 41°53'27.803" N -69°57'41.103" E