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
Cwm, Llanrothal Cwm, Llanrothal Cwm (also known as Come and Welsh Jesuit College of St Francis Xavier) was a Jesuit gathering place, Ecclesiastical province and college in Llanrothal, Herefordshire, England. It became a Jesuit college in 1622. Based in a large farmhouse, the Cwm included two houses, called "Upper Cwm" and "Lower Cwm". They were divided by a walled forecourt and during their prime each was able to generate £60 (equivalent to £ in ) annually in rents from its own land. In 1678, Cwm came under attack during the Popish Plot, when it was raided by such Protestants as Bishop Croft,