Donie O’Sullivan the owner of Killarney Riding Stables in Co. Kerry. With just two horses, Donie O’Sullivan established Killarney Riding Stables, in Co Kerry in the 1960s. Today his stables are home to over 130 horses and his business caters to thousands of visitors from all over the world. Some come for a few hours to ride out in the stunning surrounds of the Killarney National Park and some come to spend up to seven days trail riding around Kerry.