Derwentwater, or Derwent Water, is one of the principal bodies of water in the Lake District National Park in northwest England. Derwentwater is a place of considerable scenic value. It is surrounded by hills, and many of the slopes facing Derwentwater are extensively wooded. A regular passenger launch operates on the lake, taking passengers between various landing stages. There are seven lakeside marinas, the most popular stops being Keswick, Portinscale, and the Lodore Falls, from which boats may be hired.