You might be interested in the USS Pampanito, a functioning Balao Class fleet sub moored as part of the San Francisco Maritime National Park. She was used in the filming of "Down Periscope":
http://www.maritime.org/pamphome.htm
It's good to hear there's another sub out there still functioning and being taken care of, but don't you have to wait til the river stops burning before she can be take out?...
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