Siblyback Lake is a reservoir on the edge of Bodmin Moor in Cornwall, England, UK.
[2] The dam blocks a small tributary of the River Fowey.
It was built in 1968 and at full capacity the lake holds over 3 billion litres of water.
The reservoir is used to buffer the water levels in the River Fowey in the summer.
[3] In addition to watersports facilities, a 3.2-mile (5.1 km) circular path runs adjacent to the lake.