The ragtag bunch of famous faces taking to the waterways around Cahors are actor Tom Conti, Olympian Tessa Sanderson, singer Tony Christie, garden designer Diarmuid Gavin and broadcaster Penny Smith, who says the experience sounds “absolutely idyllic” - and therefore has clearly never seen one of these programmes before. Predictably, it’s not long before she’s lost control of her boat and has become wedged in a tree.