USS Bowfin Submarine Pearl Harbor Historic Sites USS Bowfin earlier in the morning, when the sky was clear and sunny. The USS Bowfin is part of the Pacific Fleet Submarine Museum, and is open for tours. Various parts of the interior of the Bowfin. Gauges and valves. Bunks for the crew. On board entertainment. No problem for claustrophobia! The hatches are a little tight. Torpedo tubes.