Superb Tower Bridge views from the oldest, most beautifully restored houseboat on the Thames. Built in 1904 as a Customs & Excise floating office, The Harpy was used as a VIP landing stage and George V made an official visit in 1920. Her transformation into a classy home is a triumph. Good-looking outside, in red and royal blue with 34 windows and hardwood decks for gazing out over the Thames. Inside there’s a colonial feel with oak floors, wooden Venetian blinds, matchboarded walls, kilims and Congolese tribal fabrics. And a feast of art, memorabilia and good design in fittings and furniture – lots of 1920s Heal’s oak pieces – including a dining table designed for Churchill in the middle of the open plan upper deck; a neat, well-equipped kitchen to one side; designer sofas, chairs and high-tech kit to the other. Cabins are all above deck and look out over the river. No 1 has a four-poster, a huge window – with electric curtains so no need to get up to be amazed by the view – a private deck and swish bathroom (the others share a bathroom and loo). Heaps of fun to be in; the best of the city at your feet.