Derek-the-Weather visits the stunning village of Beddgelert in Snowdonia to walk a 6-mile circular route with awe-inspiring views. On his way he visits a copper mine; helps National Trust volunteers build a footpath and learns the heroic – but fanciful – story of a hound that gave the village its name. Meanwhile wildlife expert Lizzie Daly gets up early to photograph mountain goats and Onkar Singh Purewal lends a hand to top off a slate sculpture, inspired by the landscape. 

Weatherman Derek Brockway is in Carmarthenshire to walk along a former railway line running from Cross Hands to Llanelli. 

On his way he fulfils a boyhood ambition to drive a train and impresses members of the famous Tumble RFC with his kicking skills. 

Meanwhile biologist Lizzie Daly gets up 

close and personal to a massive bird of prey and astronomer Dr Jeni Millard uncovers the story of the pioneering Victorian woman who photographed the moon.