A busy day today. We started the day looking to buy a bus ticket for the Hop on Hop off bus. That was a mission. Fortunately for us one of the ticket sellers spotted us first. Finding the bus stops was the next challenge. Once you find one its easy but finding that first stop was not easy! Eventually we got on a bus to Westminister Cathedral and Houses of Parluamemt. Westminister Cathederal is huge and took at least 2 hours to see it all. It's amazing the work done from centuries ago with limited resources and tools. There are hundreds of famous people buried there or memorialized in the Cathederal. The open top bus then took us to the Science Museum where we went to IMAX and saw a film that was made from the International Space Station. We have got the London Tube sorted so caught the Tube to London Bridge where the HMAS Belfast, a war ship, is permanently moored. Very interesting. Chris and Di headed off to get ready to go and see the musical The Book of Mormons while we went on a cruise of the Thames. And that was the end of the day!