This week, we escape on a magical voyage through the green heart of southwest France. We travel by traditional boats down a once-vital waterway, and we take a hot air balloon high over fairytale castles, which hide a turbulent past, but now form a tranquil playground. Guided by those who live, work and play in the handsome towns of the Dordogne, we go hunting for truffles on its banks and drink the wine it produces, as we experience the culinary delights of the river. And we take a trip aboard a luxury cruiser to a lighthouse built for a king.

Bill Nighy narrates a journey down Ireland's River Suir. From its headwaters in Devil's Bit Mountain, County Tipperary, down to the Hook Lighthouse in County Wexford, it's a river that flows with the history of the Emerald Isle.