Barry boy "Derek the Weather" is on familiar ground when he starts his walk at Porthkerry, next to his home town. On his way to Llantwit Major he drops in for tea at Font-y-Carlo caravan park, visits one of Wales's oldest pubs and tries his hand at stone-stacking on a pebble beach. Comedian Kiri Pritchard-McLean takes a nostalgic trip to Barry lido and Mo Jannah explores the stories of the African sailors who made south Wales their home.