Llyn Cau
Llyn Cau is a beautiful high mountain lake nestled within a cwm on the slopes of Cadair Idris in Eryri (Snowdonia) National Park, Gwynedd, Wales. Known for its spectacular color and surrounded by dramatic cliffs, it is steeped in local myths and legends, including tales of a terrifying serpent and the giant Idris.

Llyn Cau is a stunning high mountain pool located in a cwm on the slopes of Cadair Idris in Llanfihangel-Y-Pennant, Gwynedd, North Wales, Wales, United Kingdom. It sits 1,552 feet above sea level and is dramatically surrounded by cliffs on three sides.
Its spectacular color is best appreciated from the ridges above.

Why Go

šŸŒŠ See one of Wales' most beautiful high mountain lakes
ā›°ļø Enjoy dramatic cliffs and stunning natural scenery
šŸš¶ Explore a site rich in local myths and legends, including tales of serpents and giants
šŸŠ Brave a swim in the cold, clear waters
šŸ“ø Excellent spot for photography, historically captured by artists

šŸ„¾ Hiking

Llyn Cau is a popular destination for hikers with several routes:

  • Cadair Idris Llyn Cau loop from Dol Idris: Intermediate, ~2h 47m, 4.15 miles, 1,400ft ascent.
  • Nant Cader Footbridge ā€“ Llyn Cau loop from Corris Uchaf: Intermediate, ~2h 25m, 3.19 miles, 1,250ft ascent.
  • Cadair Idris loop on the Minffordd path: Expert, ~5h 9m, 6.53 miles, 2,775ft ascent.

Why Avoid

āš ļø Located within Parc Cenedlaethol Eryri (Snowdonia National Park) ā€“ check local regulations before visiting.

Tags
hikinglakemountainnaturefolkloremythologyprotected areaWalesoutdoorscenic