The Submarine Voyage was an attraction at Disneyland in Anaheim, California.
The attraction, which featured ride vehicles designed to look like Navy nuclear submarines, opened on June 14, 1959 as the Submarine Voyage (one of the first rides to require an E ticket).
Part of a major expansion of Tomorrowland and Fantasyland, which also included the Matterhorn Bobsleds roller coaster, an expanded version of Autopia, the Disneyland Monorail, and the Motor Boat Cruise, the attraction was originally planned to feature glass-bottom boats.
It closed on September 9, 1998, with then-Disneyland president Paul Pressler promising that a new attraction would open in 2003; it never did. The attraction reopened in June 2007 with a Finding Nemo theme, and now operates as Finding Nemo Submarine Voyage.
In the '60s, Disneyland had women dressed as mermaids sunning themselves and performing synchronized swimming in the lagoon of the Submarine Voyage. Male guests would sometimes jump in lagoon try to talk to them because some of them thought they were real mermaids!