The Dragon's Spine: Wales audio road trip

Enter Wales through the Black Mountains — a landscape of remote valleys and ancient priories hidden from English eyes.

The high moors of the Brecon Beacons, where Romans marched and modern soldiers still train.

Into Welsh-speaking heartland. The language here never stopped being spoken; the signs, the radio, the conversations are all in Cymraeg.

Follow the curve of Cardigan Bay northward, past fishing villages and hidden coves.

Enter Snowdonia from the south — Cader Idris, the mountain of the giant's chair, dominates the horizon.

The highest mountains in Wales. The roads here are legendary — the Llanberis Pass, the Crimea Pass, Bwlch y Groes.

Edward I's iron ring — the castles that finally conquered Wales, strung along the north coast.