Lake Ullswater, Lake District, Cambria. England (UK).
Ullswater is the second largest lake in the English Lake District, being approximately nine miles (14.5 kilometres) long and 0.75 miles (1,2 km) wide with a maximum depth of slightly more than 60 metres (~200 ft). Many regard Ullswater as the most beautiful of the English lakes.
It is a typical Lake District narrow “ribbon lake” formed after the last ice age when a glacier scooped out the valley floor. When the glacier retreated, the deepened section filled with meltwater which became lake Ullswater.