This 15th Century castle sits on the edge of Killarney’s lower lake. It was built by O’Donoghue Mór. The Castle came into the hands of the Browne family who later, became the Earls of Kenmare. Legend has it that O’Donoghue is in a deep slumber under the waters of Lough Leane and every seven years on the 1st day of May, he rises on his magnificent white horse and circles the lake. If you’re lucky enough to catch a slight glimpse of him, you are assured good fortune for the rest of your life.You can book a tour of the castle or book a boat trip from the pier here –

For more information – http://www.heritageireland.ie/en/south-west/rosscastle/