|Submarine USS Nautilus Museum - Exterior Views / 09SubmarineGoingToSea
While you are at the museum if a sub is coming or going to sea they will announce it over the intercom and you can go out to the pier and watch it go by. This looked like a nuclear attack sub. I don't know the name or hull number. The tug seemed to be struggling to keep up as the sub overtook it, belching black diesel exhaust out the stacks.