Nant Francon is a steep-sided glacial valley in Snowdonia, that lies between Bethesda in Gwynedd, and Llyn Ogwen in Conwy.
The valley starts in Cwm Idwal, carrying water from Llyn-y-Cwn through the Devil’s Kitchen and Llyn Idwal to join the Ogwen Valley below the Ogwen Falls on Afon Ogwen.
