WALKING TRAIL: Wern Ddu Clay Pits, Caerphilly

<p>Find out more about the fascinating geological history of the former Wern Ddu Clay Pits, near Caerphilly.</p> <p>The Clay Pits, also known as Coed-Y-Werin, are a Geological Site of Special Scientific Interest (SSSI) because of the exceptional and internationally important Coal Measure rocks exposed there that made South Wales famous.</p> <p>You won’t need to wander far from the obvious paths and numbered wooden posts mark all the audio points.</p>