Cwm Idwal Slabs (Snowdonia National Park)
Geologist and keen climber Dr Tom Challands challenges a pair of young people each to climb a rock face and see just what can be revealed from this unique vantage point, on the rock face rather than observing from the ground.
The climbs are not only technically demanding but throw up different field study challenges for the team to solve.
This location is Cwm Idwal in the Snowdonia National Park. The challenge is to investigate how the Cwm Idwal slab they tackled was affected by tectonic activity in the past and to spot the evidence which identifies the cause of subsequent erosion.