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
The Cwm, Llantrisant, Monmouthshire design, with a central block and two wings. Constructed of whitewashed rubble to a height of two storeys, the roofs have been replaced with modern tiles. The Cwm, Llantrisant, Monmouthshire The Cwm, Llantrisant, Monmouthshire is a farmhouse dating from the 16th century. Expanded in both the 17th and 18th centuries, The Cwm is a Grade II* listed building, its listing describing it as "a substantial farmhouse of distinctive T-plan". Sir Cyril Fox and Lord Raglan, in their three-volume guide "Monmouthshire Houses", give an original construction date of the late 16th century, with the roof of the main Tudor block dating