Yes, guests are requested to pre-book their visit as it helps the managerial authorities manage crowds over the tower and ensure a safe environment for them. You can plan your visit to Tower Bridge London with us, we ensure comfort for all our guests. Online booking would reserve your tickets in a quick and efficient manner on a successful payment, and confirmation tickets would be mailed on your registered e-mail. Kindly check refund and cancellation policies while making bookings online.