I will be traveling to London in July very excited about it. I was checking out things to do and I was interested in the Thames Hop-On Hop-Off River Cruise. I was wondering if while on the boat are we able to see David Gilmour's house boat ( that would be so awesome.) If not, is there a way I am able to get to it? I know I wont be able to go in but I just want some pictures of it for my album.