In the Middle Ages, Killarney was renowned for its monastery on Innisfallen Island. Founded by St. Finian the Leper in the 7th century, the Irish High King Brian Boru was educated here, and its monks spent 300 years writing the Annals of Innisfallen, a chronicle of Ireland’s early history. Killarney’s natural surroundings made it a popular tourist destination the mid 18th century, and even today, walking through the beautiful Killarney National Park remains the most popular activity in town. The 15th century Ross Castle lake is a pleasant place to stroll, and one of the popular walking trails here brings you past prehistoric copper mines. Ross Castle is also the launching point for boat tours of the lake, including trips to the famed Innisfallen Island during the summer. In the town center, you can appreciate the elegance of Killarney House and Gardens, or the fine Gothic Revival architecture on the 19th century St. Mary’s Cathedral.