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Yes! I loved our Battleship Cove trip in Cub Scouts. We also got to tour an old submarine. It had a very particular old timey chemical smell to it that I've only ever encountered in one other place; Building 20 at MIT (RIP).

Also a veteran of the Cub Scout sleepover at Battleship Cove. An awesome memory.

Asbestos maybe.

asbestos doesn't smell.

I think they do this with the USS Hornet aircraft carrier:

https://www.uss-hornet.org

I remember seeing a corvette club meet there, and I believe they drove their cars onboard.

YSK about Tiger Cruises, where family can come aboard the ship to see what day to day life is like.

https://www.defense.gov/observe/photo-gallery/igphoto/200118...