Derek Brockway was joined on this walk by Hywel Roberts from Snowdonia National Park Authority. The sight of Llyn Idwal is breathtaking, nestling in the north facing Cwm Idwal and surrounded by ...

Dr Tom Challands: Today, we're in the Snowdonia National Park Wales. We'll be climbing the Cwm Idwal Slabs. These magnificent rocks were folded by tectonic activity around 400 million years ago.

What is the Winter Monitoring System? The BMC Winter Monitoring systems give winter climbers live up to date temperature readings directly from the cliffs of the Devils’ s Kitchen in Cwm Idwal, ...