in Mid Wales
Silly spate ditch. Take climbing gear as you will need to abseil round two large drops which land directly onto rock. With enough water, good but rocky slides and drops.
Must be lots of water around. If the nearby Ystwyth is at gauge of over 0.5, try it.
Putin just south of the windfarm at Cripiau Nantmelyn (just east of Pontarfynach along small roads) at a small bridge over the river. Takeout just upstream of the confluence with the Mynach at the next small bridge downstream of the gorge. The last bit to the bridge is tree infested grade 2: you can avoid a lot of this by heading up the track on river left from the takeout bridge and finding somewhere further upstream.