Leave the tube to the stressed-out commuters for a more relaxing way of travelling around London, enjoying the sights on a river cruiser along the Thames. Board a city cruiser and head down the river to Greenwich. The cruise gives you a real insight into the layers of history that have built up along the river, an amazing mixture of the old and the new, with great views of the Houses of Parliament, Tate Modern, St Paul's and many more London landmarks. Any time you want, you can hop off the boat at any one of four piers, go and explore and then hop back on later. Tickets to the Tower of London, the magnificent medieval fortress on the north bank of the Thames by Tower Bridge, are also included in this experience. The Tower is one of London's must-see attractions; teeming with history, it has been a royal residence, a prison and the scene of many executions (no wonder there's so many ghosts...). It's also home to the fabulous Crown Jewels.