The Twilight Zone is the collective name for two small, interesting limestone buttresses in close vicinity of each other. Some of the best quality limestone in the Eglwyseg valley can be found here, with everything from smooth slabs to wild roof climbing.
The crags can be found near the second tributary
valley down from World's End Crag. Coming from Llangollen, just over the humpback bridge near Plas yn Eglwyseg farm the road bends sharply right, and a few metres up the road after the bend there are some small pull-ins on the right. Park here, or further up the road on the lay-by to the left. Walk back over the bridge to where a sign for a public footpath can be found. Walk up the field to its left to where the woods start. Fight your way through the woods until you come to a fence; surmount this, and soon the crags will be in full view in front of you.