Submarine Voyage opened on June 14, 1959 as part of a major expansion of the park that also included the addition of the Monorail and the Matterhorn Bobsleds. Walt looked on proudly as the new fleet was christened with a champagne bottle by Mildred Nelson, wife of the U.S.S. Nautilus’ chief machinist.

In honor of Father’s Day, we share the stories told by Diane Disney Miller about her father, Walt Disney. In 1956, Diane sat down with journalist Peter Martin where she spoke candidly about what it was like to be Walt’s daughter.