Actress Fay Ripley joins Rosie in south-west Wales, where the pair stay the night in a stay the night in a decommissioned airplane, join a local wild swimming community, feed crocodiles and hunt the ghost of a 400-year-old ape in a haunted castle. Fay also gets cold feet when she faces her childhood fear of horse riding. But this is all leading up to their ultimate task - coasteering around the cliffs of Pembrokeshire.