Wast Water or Wastwater is a lake in the . The lake is approximately 4.6 kilometres (almost 3 miles) long and 600 metres (more than a third of a mile) wide, and is located in the Wasdale Valley. It is the deepest lake in England at 79 metres (258 ft), and is owned by the National Trust. The head of the Wasdale Valley is surrounded by some of the highest mountains in England, including Scafell Pike, Great Gable and Lingmell. Wast Water is the source of the River Irt which flows into the Irish Sea near Ravenglass. (more...)