Sprawling over 10,236 hectares, this sublime park is an idyllic place to explore. Ross Castle and Muckross House draw big crowds, but it's possible to escape amid Ireland's largest area of ancient oak woods, with panoramic views of its highest mountains and the country's only wild herd of native red deer. The core of the park is the Muckross Estate, donated to the state by Arthur Bourn Vincent in 1932; the park was designated a Unesco Biosphere Reserve in 1982.
The Killarney Lakes – Lough Leane (the Lower Lake, or 'Lake of Learning'), Muckross (or Middle) Lake and the Upper Lake – make up about a quarter of the park, and are surrounded by natural oak and yew woodland, and overlooked by the high crags and moors of Purple Mountain (832m) to the west and Knockrower (552m) to the south.