About Buttermere 

Buttermere is a lake in the English Lake District whch is 1.25 miles (2,010 m) by .25 miles (400 m) wide, and is 75 feet (23 m) deep.

A place of considerable scenic value, it is situated towards the head of the valley of the River Cocker and is surrounded by fells, notably the High Stile range to the south west, Robinson to the north east, Fleetwith Pike and Haystacks to the south east and Grasmoor to the north west.

The adjacent village of Buttermere stands at the north western end of the lake takes its name from the lake and beyond this is Buttermere's twin, Crummock Water.

The shoreline path around the lake is about 4.5 miles (7.2 km) long, and at one point runs through a rock tunnel beneath the locality of Hasness.