Derwentwater Marina, Keswick, Cumbria.

The 'Queen of the lakes'.

The marina hosts most types of watersports and hire out a variety of dinghies and windsurfers. You can launch your own boat for about £6 which includes use of changing rooms, showers and car parking. Nice area, not too commercialised, sited at the northern end of the lake on the A591 from Windermere.