Elterwater (derived from the old Norse for swan) is a privately owned
lake in the heart of the Lake District. Located to the south of Grasmere
and to the west of Lake
Windermere, the lake is only 0.80 m in length, 0.4 km wide and
15.24 m deep. The lake is the largest on the border of the Langdale
valley and the views of the Langdale Pikes are marvellous and
well worth a visit.