Bennar’s fine, sandy beach is backed by the occasional sand dune. These sand dunes are of Special Scientific Interest, since they are constantly developing and therefore changing their environment.
Dyffryn Ardudwy, Gwynedd, LL44 2HD
The slate in this mine, which is found in veins between layers of ancient Pre-Cambrian rocks, is among the oldest in the world. Many industrial towns in Britain and Ireland have the original roofs made of Llanfair slate.