Disneyland once boasted that it had the world's 8th-largest fleet of these undersea vessels; they returned in 2007
[DOC] [TLE] Disneyland Scuttling Submarine Fleet - latimes [PAR] Jul 30, 1998 ... Walt Disney Co. said Wednesday it will retire one of Disneyland's oldest rides, 
the ... on underwater journeys, without ever fully submerging the vessels.