We bought a combination ticket with madame tussauds on the internet. So we already had a ticket, when we arrived. It seemed we were lucky, we maybe waited 10min until we were sitting in the boat ride. Yeah the boat ride, as a fan of amusement parcs, I was really disappointed. It was short and pointless. I read before, that you get soaking wet, but it depends where you sit. We didn't have a drop on us.
The rest of the dungeon was okay. Some actors were really good, some really annoying. I didn't feel once scared or surprised. The last ride was also to short.
All in all I could think about a thousands things I could have done instead. So if you are on a short trip to London do something else.More