The sub thing reminds me that in Sept 2001, Sarah and I got to take a tour of the USS Kamehameha in San Francisco, a stop it made on its way to Washington St for decommissioning. It was a chance thing, just happened to be in the right place at the right time for a once in a lifetime tour. Very cool, very confined spaces
Here is a website dedicated to the boat: http://www.kamfish.com/
Here are some pictures that include shots from where we got to get on the boat. http://www.kamfish.com/kamphotos_DV_Cruise_2001.html (at the bottom, at Alameda). Sarah and I were visiting the USS Hornet museum that day.