Watlendlath Tarn covers around seven acres (28,000 m2) and has a maximum depth of 17 m (56 ft). It is located high between the valleys of Borrowdale and Thirlmere and is just a few kilometres south of Keswick. Its inflow is Blea Tarn Gill from Blea Tarn above and its waters eventually flow down into Derwent Water. It’s possible to walk here on paths from Rosthwaite or Stonethwaite in Borrowdale and there is limited parking near Watendlath Farm, so the car park is often full in summer. Most of the tarn’s shores are accessible for fishing for rainbow and wild brown trout, although it can get boggy in places. Boats are available for hire.