The lakes in the Cumbrian Lake District have many moods and Derwentwater is no exception. It is one of the northern lakes and sits in Borrowdale, just south of the town of Keswick. About three miles long by a mile wide, it has a regular passenger launch service so that visitors can enjoy the wonderful scenery.
There are several islands in the lake, which belong to the National Trust. There is an 18th century house on one of them, leased to tenants and open to visitors for a few days each year. You can see its boathouse in the photo below.