The museum is spacius and well marked. The real U-505 (the only German submarine in the United States) is in special area. Buy tickets to on board tour and experience life aboard this sub first-hand in the days leading up to her capture. Do not forget to watch the movie at the exit where they show how they built the place where he was stationed as he was taken to the place.
There are many things to experience and test. Very good to go with kids.