In tonight's episode:
Carl joins History Chef Ceri Lane at Tretower Court and Castle near Crickhowell.
They'll be making 'hardtack' biscuits, a snack historically eaten by sailors, when they were at sea for months on end.
Carl will also be finding out about the site's rich history, from its time as a grand country house, through to its use as a farm, and eventually its restoration.
Also in tonight's episode:
Andrew Price will be at mountain biking centre Bike Park Wales in Merthyr Tydfil.
Ruth will be exploring the Pembrokeshire Coast, and Hannah is on Saint Catherine's Island in Tenby.
Coast & Country has finished for now, but you’ll be able to get your weekly fix of the best of Wales’ when we return this autumn.
Andrew Price returns with the series celebrating the Welsh countryside and its people.
Nicola Hendy prepares to take on the longest zip line in Europe in the first episode of Coast & Country. Tonight at 8pm.