Tags: Site Of Special Scientific Interest.
Llyn Padarn is a glacially formed lake in Snowdonia Gwynedd north Wales and is an example of a moraine dammed lake. The lake is approximately 2 miles (3.2 km) long and at its deepest point is 94 feet (29 m) deep. At its south-eastern end it is linked to the neighbouring Llyn Peris (which forms the lower reservoir of the Dinorwig power station).