A nature reserve on the limestone escarpment above Llangattock, across the Usk from Crickhowell. A disused quarry tramway leads along the cliffs, where rare whitebeam trees grow out of the rock. Under the escarpment runs one of the longest cave systems in Britain, explored by cavers rather than walkers.
Craig y Cilau Nature Reserve
Limestone escarpment above Crickhowell with rare whitebeam trees and one of Britain's longest cave systems
Most visitors miss this
A leisurely walk along a disused tramway takes us through Llangattock quarries and into Craig y Cilau Nature Reserve, an outstanding botanical site famous for its alpine trees and plants.