I would not bother with the longer tour - we did it as couldn't be bothered to change buses with the children but it was too long, and also there we then had to change buses at Baker Street, or sit on ours for 20 minutes until it left again. We'd not been told this would happen although the brochure says it's possible. Also the bus driver got off at one point for at least 5 minutes so that delayed us further. Bus stopping point could be signed posted more clearly from Victoria.
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