From the Mourne Mountains, which inspired C.S. Lewis’s Narnia, to the shores of Strangford Lough, County Down is an outdoor enthusiast’s dream. It’s also the final resting place of St. Patrick, whose grave can be visited at Down Cathedral in Downpatrick. The Skiffie Festival in Strangford celebrates traditional rowing, while the Hillsborough International Oyster Festival is a must for seafood lovers.