Armed with your travel pass, London truly is your oyster. Your Travel Director will give you suggestions on how to make the most of your full day at leisure. Walk through 'The City' exploring the oldest part of London – the imposing dome of Christopher Wren's St. Paul's Cathedral, Leadenhall Market's ornate façades and the Tower of London, with its grim history and extraordinary royal heritage. Pay tribute to Admiral Nelson in Trafalgar Square and wander down The Mall to Buckingham Palace, the official London residence of the UK's sovereigns since 1837. Alternatively, consider a full-day Optional Experience to the enchanting Cotswolds, visiting Shakespeare's Stratford-upon-Avon, with a stop in the university town of Oxford to admire the towering spires of cathedrals, churches and colleges.