Postcard GB-1688694

👆 Derwent Water, is a lake in the Lake District in North West England 🏴󠁧󠁢󠁥󠁮󠁧󠁿 , immediately south of Keswick. It is in the unitary authority of Cumberland within the ceremonial county of Cumbria. It has a length of 4.6 kilometres (2.9 mi), a maximum width of 1.91 kilometres (1.19 mi), and an area of 5.4 square kilometres (2.1 sq mi). Its primary inflow and outflow is the River Derwent, which also flows through Bassenthwaite Lake before reaching the Irish Sea at Workington.