In 1903, Guglielmo Marconi made history when he sent and received the first two-way wireless transatlantic message from the United States to Europe from his Wellfleet station. Families are invited to join licensed radio operators from the Marconi Cape Cod Radio Club as they make two way contacts with other operators around the world to honor the birthday of Marconi, on the Saturday closest to his birth date, April 25, 1874. Kids can practice Morse code on a key, use signal flags, and learn about other signaling techniques used prior to the invention of wireless.

Takes place at the Coast Guard Station, Coast Guard Beach, Eastham.