A stone round tower and church ruins stand behind a low stone wall under a blue sky.
The Aghadoe Round Tower and church ruins are located near Killarney in County Kerry. Courtesy Finola White, Failte Ireland

Aghadoe – the high view over Killarney

📍 Aghadoe, Kerry

🏛️ Attraction

Last updated: 21 June 2026

Aghadoe

The reason to climb the ridge is the view. From this windswept rise over the Killarney valley in County Kerry you look straight down on Lough Leane, the island of Innisfallen and the jagged line of the MacGillycuddy’s Reeks behind. The name Achadh Dá Eó means ‘the place of the two yew trees’, and the site is still a quiet mix of meadow, medieval stone and the odd solitary yew, set back from the main tourist run through Killarney. It is open all year and free, which for this part of Kerry is worth saying.

What to see

The ground is an open-air record of early Irish Christianity and Norman power, with no fee for any of it.

  • The cathedral ruins: the standout is a 12th-century Romanesque doorway carved with chevron and rope-pattern mouldings. Inside are 13th-century window lights with floral detail and an 18th-century crucifixion carving on the south wall.
  • The Ogham stone: set into the chancel’s south wall, a 1.68m yellow sandstone slab of the 6th or 7th century, carved with the early Irish inscription ‘BRRUANANN’ (read by some as ‘BRRENANN’).
  • The round-tower base: 5.5m of foundation survives from a classic Irish round tower, the kind built between the 9th and 12th centuries as bell-tower, refuge and status symbol in one.
  • Parkavonear Castle: a short walk down the slope reaches the cylindrical keep of this rare early-Norman tower of the late 12th or early 13th century, with two-metre walls, an original fireplace and narrow windows.
  • The graveyard: a discreet corner marks the mass burial of around 2,000 victims of the Great Famine and the fever epidemics that followed in the 1840s.

History

The monastery is traditionally credited to St Finian the Leper (Finan Lobhar) in the late 6th or early 7th century. The timber buildings are long gone, but the Annals of Inisfallen note a stone church here by 1027. The cathedral as it stands was finished in 1158 under Amhlaoibh Mór Ó Donoghue, then picked up Hiberno-Norman detailing after the Anglo-Norman arrival in 1169.

A Church of Ireland building went up in the 19th century on land given by Lord Headley. It fell out of use in 1989 and is now a ruin, though its graveyard is still in use and holds the Headley family tomb, inscribed ‘Buried But Not Forgotten’. The whole complex is now a National Monument in the care of the Office of Public Works.

The walk and the light

Lough Leane, Killarney National Park, Co Kerry
Lough Leane, Killarney National Park, Co Kerry Courtesy Fáilte Ireland

The Aghadoe Loop starts at the car park near Aghadoe Heights Hotel and circles the cathedral, the round-tower base and the castle keep before returning to the viewpoint. It is about 1km and takes 20 to 30 minutes, mostly on grass that goes soft after rain, so wear proper shoes. To extend it, the R559 through Killarney National Park adds woodland and lakeside stops, and Ross Castle or the Gap of Dunloe are easy to fold in.

Parkavonear Castle in County Kerry.
Aghadoe military tower or castle 1892 Royal Society of Antiquaries of Ireland / Wikimedia Commons / Public domain

The ridge is fully exposed and the wind is brisk most of the year, so come early morning or late afternoon. You get the best photographic light and the fewest people for it.

Visiting

The site is a few kilometres north-west of Killarney town; follow the R559 signs for Aghadoe. Free parking is opposite Aghadoe Heights Hotel, but it fills fast in peak summer. The uneven grass and steep approach road rule it out for wheelchairs and pushchairs, and the castle keep has unguarded internal stairs, so mind children. There are no toilets or cafés on site; Killarney town and the hotels nearby have the lot. Bring a windproof jacket, water, sturdy shoes and, for the lake, a wide-angle lens.

Bus route 40 (Killarney to Tralee) stops at the Aghadoe turn-off, about 10 to 15 minutes from Killarney bus station, and the nearest train station is in Killarney too.

Where to stay and eat

  • Aghadoe Heights Hotel & Spa: a 5-star resort over the lakes, with 74 rooms, a thermal spa suite, outdoor tennis courts and The Lake Room Restaurant working with Kerry producers. A complimentary shuttle runs to Killarney town.
  • Killeen House Hotel: a smaller country-house hotel in 1.5 acres of gardens, a short walk from the car park, pet-friendly and with EV charging.
  • Dining: both hotels do breakfast and dinner with local produce; for casual options, Killarney town is a short drive and well stocked with pubs, cafés and restaurants.

Nearby

  • Killarney National Park: the UNESCO-listed park, taking in Muckross House, Ross Castle and the woodland trails. Our National Parks guide has more.
  • Lough Leane boat cruises: seasonal departures from Ross Castle pass Innisfallen island and run beneath the Aghadoe viewpoint.
  • Ardfert Cathedral: another medieval ecclesiastical site, a drive of about 30 km in County Kerry.
  • Ring of Kerry and Gap of Dunloe: Aghadoe sits at the northern gateway to both, which makes it a sensible first stop before heading west.