Llyn Idwal into Llyn Idwal from around Cwm Idwal. One small river flows out and joins the Afon Ogwen river at Pont Pen-y-Benglog near Ogwen Cottage, immediately above the Rhaeadr Ogwen waterfall. The lake is easily accessible on foot via a 900-metre long stone-paved path from Ogwen Cottage on the main A5 road. Another path encircles the lake. Two paths lead from opposite sides of the lake to the top of the ridge close to the Twll Du (Devil's Kitchen), but these paths become rather steep in places. They lead to Glyder Fach and Glyder Fawr. There is a small pebble beach
Iago ab Idwal Iago ab Idwal Iago ab Idwal was a King of Gwynedd (r. 950 979) and possibly Powys. Iago was the son of the earlier King Idwal the Bald but, upon Idwal's death in combat in 942, his uncle Hywel the Good invaded Gwynedd and seized the throne. On Hywel's death in 950, Iago and his brother Idwal (called "Ieuaf") were able to drive out their cousins at the Battle of Carno and reclaim the kingdom. Fighting continued, with the brothers raiding as far south as Dyfed in 952 and their cousins raiding as far north as the Conwy Valley in