Derwentwater is a picturesque lake in the Lake District of England, located near Keswick. It's the third largest lake in the area, after Windermere and Ullswater. Surrounded by beautiful hills and wooded slopes, it's a popular spot for recreational activities like walking and boating. The lake has several islands, including Derwent Island and St Herbert's Island. In addition to its natural beauty, Derwentwater has also been featured in art, literature, and even video games. Overall, it's a charming destination for nature lovers and tourists looking to soak in the stunning scenery of the Lake District.