Llyn Padarn
General data
- Name: Llyn Padarn
- Water system: River Seiont
- Water type: Natural lake
- Progression: River Seiont -> Menai Strait -> Irish Sea -> Atlantic Ocean -> Planet Earth
- Climates: Temperate
- Continents: Europe
- Countries: Wales (UK)
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 (about 240 acres (97 ha)) and at its deepest point is 94 feet (29 m) deep, and is one of the largest natural lakes in Wales. At its south-eastern end it is linked to the neighbouring Llyn Peris (which forms the lower reservoir of the Dinorwig power station). The busy village of Llanberis lies on the southern banks of the lake.