Barra heads out to sea from Ballycastle harbour with local fisherman Ian Latham and conservationist Erin McKeown. He's taking part in a project that monitors the local population of sharks, rays and skates. Barra helps the team as they measure, tag and release sharks.Barra visits Glenarm beach where he meets sea glass hunter Ria McCullough and her daughter Emily. As they comb Glenarm beach searching for small pieces of colourful frosted glass, Barra hears how every bit of glass has a story behind it, and he is given a crash course in sea glass jewellery making.Barra takes the ferry over to Rathlin Island to search for Irish hares, in particular the rare golden hare. He meets local photographer Tom McDonnell, one of only a handful of people to have ever taken a picture of the golden hare. The two head off on a long search across the island to try and set eyes on it.