Long before tourism arrived, Killarney was a place of power, faith and conflict. Monasteries were founded here in the 7th century. O'Donoghue chieftains built their stronghold on the lakeshore. Queen Victoria came here in 1861 and put the town on the map for the world.
Historical sites
Est. 640 AD
Innisfallen Island Monastery
Founded by St Finian the Leper, this island monastery was one of Ireland's great centres of learning for over 1,000 years. The Annals of Innisfallen — a chronicle of Irish history compiled here — is now in the Bodleian Library at Oxford. The ruins are remarkably well preserved and the island setting is magical.
Est. 1448
Muckross Abbey
A Franciscan friary founded by the MacCarthy clan in 1448. Burned by Oliver Cromwell's forces in 1652 but the ruins remain remarkably complete. The ancient yew tree growing inside the cloister — reputed to be as old as the abbey itself — is one of the most striking sights in Killarney. Several Kerry chieftains are buried here.
Est. c.1490
Ross Castle
A 15th-century tower house built by the O'Donoghue Mór clan on the shores of Lough Leane. The last place in Munster to fall to Cromwellian forces in 1652, according to a prophecy that it could only be taken from the water — they brought boats overland and the garrison surrendered. Now managed by the OPW with excellent guided tours.
Built 1843
Muckross House
A magnificent Victorian mansion built in the Tudor style for Henry Herbert and his wife. Queen Victoria visited in 1861 — the preparation for her visit reportedly contributed to the Herbert family's financial ruin. The 65-room house is now a museum with beautifully preserved Victorian interiors and working craft studios in the courtyard.
Est. 7th century
Aghadoe Hill & Ruins
An ancient settlement site with Ogham stones, a round tower stump, and the ruins of a 12th-century Romanesque church. The hilltop commands extraordinary views over the three lakes and the MacGillycuddy's Reeks. One of the most atmospheric spots in the Killarney area and often missed by visitors who stick to the main sites.
Local tip
Muckross Abbey at dusk is genuinely one of the most atmospheric places in Ireland. The OPW site closes in the late afternoon but you can walk to the abbey through the National Park at any time — the last light coming through the ancient yew tree in the cloister is unforgettable.