Overview
Few spots on the Ring of Kerry pack as much history into such a short walk as the Cahercarbery Forts. Sitting just 400 metres apart on the northern bank of the Valencia River estuary, Cahergall and Leacanabuaile are two exceptionally well-preserved stone ringforts that once served as the fortified homes of early medieval Kerry. A short stroll from the dramatic ruins of Ballycarbery Castle, these cashels offer a rare, uncluttered look at how Ireland’s ancient landowners lived, farmed, and defended their territory.
Managed by the Office of Public Works as state-owned National Monuments, the forts are free to enter and open year-round. There are no fences, ticket booths, or guided tours – just ancient drystone engineering set against the backdrop of the Skellig Coast and the Atlantic. Visitors can walk the perimeters, step inside the enclosures, and take in sweeping views over the estuary, making this one of the most atmospheric and accessible archaeological stops in County Kerry.
Cahergall: The Chieftain’s Stronghold
The larger of the two, Cahergall (from the Irish An Chathair Gheal, meaning “the bright stone fort”), dates to around 600 AD. Built during a period of intense ring-fort construction across Ireland, it was designed as a defended farmstead for a local chieftain. The site sits on a slight ridge backed by a low rock face, a natural advantage amplified by human engineering.
The surviving rampart is a masterpiece of dry-stone masonry. In places, it still rises nearly 6 metres high and stands 5 metres thick at the base. Inside, the enclosure is divided into two concentric terraces split into nine stepped sections, likely used for storage, livestock, or workshops. At the centre lies the footprint of a large drystone hut with an internal diameter of over 6 metres, complete with a substantial hearth-pit that would have been the heart of the household. A rectangular drystone annex built against the north inner wall hints at later modifications as the settlement adapted over the centuries.
Leacanabuaile: The Stone Village
A few minutes’ walk away lies Leacanabuaile, a name that translates to “hillside of the summer pastorage.” Constructed later, in the 9th to 10th century, this fort served a slightly different purpose. While still a defended homestead, it was closely tied to an early Christian community and seasonal farming practices. The circular wall reaches up to 3 metres high and encloses a roughly 20-metre diameter space. Its entrance faces east, a common orientation for ringforts that may have been chosen for practical or symbolic reasons.
Inside Leacanabuaile, the domestic scale of early medieval life becomes immediately clear. Three stone beehive houses (clochán) with beautifully corbelled roofs still stand, offering a tangible sense of the compact, insulated dwellings used by families and herders. An underground passage, or souterrain, is also visible at the entrance. These earth-sheltered tunnels were typically used for storing grain, cheese, or valuables, or as a refuge during raids. While the entrance can be inspected, the passage itself remains closed to the public for safety and preservation reasons.
What the Excavations Revealed
Archaeological work at both sites has uncovered a wealth of everyday objects that bring these stone circles to life. Excavations at Cahergall in the 1990s uncovered hundreds of stake-holes (suggesting timber structures once stood within the walls), quern stones for grinding grain, bronze fragments, and iron slag from early metalworking. Meanwhile, digs at Leacanabuaile in 1939–40 revealed iron knives, bone combs, pins, millstones, and lead items, alongside earlier Bronze- and Iron-Age artefacts that prove the hillside has been occupied for millennia.
Many of these finds are now displayed in the Kerry County Museum, where visitors can see the tangible remnants of the people who once navigated these ramparts.
Getting There & Practical Tips
By car: The forts are easily accessed from the N70. A small, free car park is located just off the road near Ballycarbery Castle. Clear signage directs you to the short, well-marked footpath connecting the two sites. The car park fills quickly during peak summer months, so arriving early or on weekdays is advisable.
By public transport or bike: The nearest Bus Éireann stop is in Cahersiveen, roughly 3.5 km away. Services are limited, so most visitors drive, take a local taxi, or cycle the quiet country road. The walk from the town centre takes about 10–15 minutes on a narrow but manageable road.
On-site facilities: There are no toilets, cafés, or shops at the forts. The nearest amenities are in Cahersiveen. Bring drinking water, snacks, and a light layer – the coastal weather shifts quickly, and the exposed hillside can be windy even in summer.
Access & safety: The ground is uneven grass and stone, with some steps and slopes. The forts are suitable for visitors with reasonable mobility, but may be challenging for those using wheelchairs or strollers. For preservation reasons, climbing the walls is strictly prohibited. Stay on the designated paths and keep a safe distance from the outer edges, especially when winds pick up.
Ballycarbery Castle: The iconic 15th-century tower house sits just across the estuary. It remains on private land and is not open to the public, but the view of it from the forts is one of the best photographic opportunities on the Ring of Kerry.
Nearby Attractions
If you’re exploring this stretch of the Ring of Kerry, consider pairing the forts with these nearby stops:
- Aghadoe – An early medieval monastic site with panoramic views over the Lakes of Killarney.
- Ardfert – The former ecclesiastical capital of Kerry, featuring a restored cathedral and historic round tower.
- Ballinskelligs – A charming coastal village with a beach, heritage centre, and launch point for Skellig boat tours.
- Banna Strand – A Blue-flag beach backed by dunes and linked to the 1798 rebellion and the legendary O’Donoghue of the Glees.