In the final episode of the series, comedian Rosie Jones takes Cold Feet legend Fay Ripley to Pembrokeshire in south-west Wales, where Rosie's organised to go coasteering - a thrill-seeking activity invented in Pembrokeshire where you climb up cliffs, launch yourself off them and swim in the freezing Welsh sea.

Along the way, they face Fay's childhood fear of horse-riding, stay the night in a decommissioned aeroplane, make a traditional Welsh love spoon, swim in the sea with a local wild swimming community, feed crocodiles with a quick detour to a car park in Swansea and hunt the ghost of a 400-year-old ape in a haunted castle. This is not the relaxing holiday Fay had in mind!

Will they take the plunge with Rosie's toughest challenge yet?