We were on it a couple of years ago- and aboard the Submarine.
The visit to the submarine led to a 60 year postscript to one of my Dad's WW-Ii stories. Dad was in B-29's, went through a few of them. Dad's B-29 was shot up over Osaka, had 2 engines shot out from flak, and a 3rd one damaged. Third one gave out, the plane had 30 minutes or so before ditching into the Pacific. Dad was the radio operator/Gunner onboard, and was able to make contact with the USS Sunfish, a submarine on search and rescue. Plane ditched, crew got into a raft, Dad had to go back to the sinking plane to get the tail-gunner. The Sunfish picked them up. Not long after, the crew heard that the Sunfish was lost at sea. Always made Dad sad. So- the postscript, I looked for the name of the Sunfish on the plaque onboard the Clamagore for subs lost in the War. The "Sunfish" was not on it. Googled it- the Sunfish was lost- as in damaged and the radio inoperative- but made it back to safety after the war ended. Dad never heard that part.