Tick off londons most famous sights in one day with a 35 hour royal sightseeing tour and thames river cruise travel by coach through the english capitals most recognizable areas and see top attractions like kensington palace and big ben then watch the famous changing of the guard ceremony at buckingham palace before strolling to the thames river for your cruise travel between westminster and tower pier gliding past londons most noteworthy attractions including the london eye and the to