Weatherman Derek Brockway explores the Llyn Peninsula, walking from the pretty resort town of Abersoch to bustling Pwllheli. On the way, he discovers hoofprints made in a prehistoric forest millions of years ago, but only recently revealed in shifting sands, and stops off at a special retirement village where a little bit of Poland has been recreated in north Wales.

Weatherman Derek Brockway's walk in Cardigan Bay has something for everyone. For the first half, he explores one of Britain's oldest and largest raised bogs. His route then takes him to a unique railway museum filled with nostalgia, and he also discovers the legend of Cantre's Gwaelod at Sarn Cynfelyna, which stretches an incredible 11 kms out to sea. He finishes at the university town of Aberystwyth with its Victorian cliff-top pleasure park. Derek also has a go at paddling-boarding - which has its challenges.