Excellent way for a first meeting with London although it's not always obvious to know where the bus-stops exactly are. The 48h option is a good deal too. Good to have a few transfer stops. More would even be better. Would also be nice to have buses driving in the opposite direction. As we were staying in Kensington, it would have been easier that way to reach the NHM, Science and V&A Museums, Harrods as well as Buckingham Palace for the 11.15 am Change of Guards. Pity you don't drive till 9 or 10 pm. Pity there're no boat stops at Modern Tate.
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