A short ferry trip from Ballycastle is Rathlin Island, N Irelands only inhabited Island with around 150 residents. You can stay in a variety of places from Guesthouse to glamping pods. There is one pub on the island. Rathlin is famous for its seabird colonies with nesting sites for large numbers of Guillemots and Puffins. The best time to see the birds is from May to August.