The Disney Frontier Blog

1965 Submarine Disneyland Anaheim California, originally uploaded by Shifting Leaves.

You are looking at the Skipjack in the Submarine Lagoon. From www.disneysubmarines.com:

The eight submarines in Disneyland’s fleet were originally named after the U.S. Navy’s atomic submarines: The Nautilus, The Seawolf, The Skate, The Triton, The Ethan Allan, The Patrick Henry, The Skipjack, and the George Washington. The submarines were each 52 feet long and weighed 94,000 pounds. They could seat 38 guests at a time and traveled at a maximum speed of 1.7 miles per hour.