Maybe you should try to contact them directly, instead of using Tripadvisor to communicate. sea.museum If you're trying to book the trip through Tripadvisor, I don't think posting this under the museum reviews will get you an answer about bookings.

Hi Rosie, absolutely! You will receive a stamp at the front desk with your Big Ticket pass, and this will allow you to leave and come back to the museum as you wish on that day.You're also welcome to check out the vessels first and then the exhibitions - in fact, our visitors tell us that's the best way to do it! We hope you enjoy your visit.

Hi, Most visitors stay at the museum for half a day, but you could easily spend the whole day exploring - with a submarine, navy destroyer, the replica of James Cooks endeavour, 6 permanent galleries and the new Action Stations exhibit with its interactive discovery tables there is plenty to see and do. YOTs café onsite is the perfect spot to stop for lunch when you need to refuel. If you are visiting during the summer school holidays, the Horrible Histories pirate exhibit will be perfect for your kids and there are plenty of extra kids activities on too - all included in the Big Ticket. Hope that helps!