Save over 3 per adult on this thames hop on hop off ticket this ticket entitles you to a hop on hop off ticket from the following piers waterloo westminster tower pier and greenwich the ticket is valid for unlimited travel throughout the day embarking or landing at any of the piers an stunning way of seeing all of the major london sights from the river pier information westminster pier for westminster abbey the houses of parliament big ben horse guards whitehall the churchill