Derek Brockway is back with a new series of Weatherman Walking. Derek leaves his weather map behind, dons his walking boots and heads for the hills above Aberdyfi to explore the surrounding countryside above the Dyfi estuary followed by a walk on the beach. In the same programme, Derek also discovers Merthyr Tydfil's extraordinary industrial heritage with a walk with two castles, some impressive iron furnaces and beautiful valley views.Derek Brockway takes a hop across the water from Tenby to Caldey Island, which is well-known for its monastery, monks and lavender perfume.

Weatherman Derek Brockway heads west for another two wonderful walks - one down by the sea and the other up in the hills with an iconic castle as its centrepiece. Derek first takes a hop across the water from Tenby to Caldey Island. Well-known for its monastery, monks and lavender perfume, it's also a super place for a sunny stroll. Then Derek takes a circular walk around Carreg Cennen Castle, one of the most dramatic, photogenic and romantic castles in Wales.

Derek Brockway heads to Llandudno but he's not there to hit the beach, he's off to explore the rugged beauty of Great Orme, a giant headland overlooking the Irish Sea. Along the way he visits St Tudno's church and copper mines that date back four thousand years. His next walk takes him to the remote Berwyn mountains, where he walks from Llangynog to the spectacular Pistyll Rhaeadr waterfall, one of the seven wonders of Wales.