Ahoy, derstosstrupp...
Appreciate that posting of your visit there. Glad your boy, enjoyed the tour.
Know that, last I was there, at Battleship Park in Mobile, Al. ... of the going aboard the Bama (BB-60) & the Drum (SS-228) were self-guided, of course... with the size of the Bama, they had to break it down to mhmm... midpoint fore & aft as the start point, but... was 1 tour route that would take you through the aft end from there & exit near where you started. Same for the tour path, leading forward.
That's not to say... that you couldn't go on a guided tour, as there was that option as well. Again... that was, as last I knew of. No idea of what changes they may or may not have made, since then.
It used to be, that you were able to go into the bridge areas on both the Bama & the Drum, but... (no clue as to why they stymied off those areas, from being able to be visited...

) last I was there, was NOT able to, as they had those areas blocked off.
Any who... enjoyed the vid of your time there, aboard the USS Cobia (SS-245)
M. M.