Overview
Balor’s Fort (Irish: Dún Balor) sits on the far-eastern tip of Tory Island, the most remote inhabited island off the Irish coast, on a headland the Atlantic has cut off on three sides with cliffs around 90 metres high. The only way onto it is a narrow isthmus, which is exactly why people built a fort here. You reach the island by ferry from Magheroarty Pier on the mainland, land at West Town, and walk east along the cliff path to the fort. The reward is unbroken sea views, puffins between April and August, and a direct line to one of Ireland’s oldest myths. If you only have time for one walk on Tory, this is it – but give it the best part of a day and check the weather first.
Mythology and legend
The name Dún Balor belongs to the Fomorian king Balor of the Evil Eye. In the Lebor Gabála Érenn and later oral tradition, Balor ruled from this island and feared a prophecy that his own grandson would kill him. To stop it, he locked his daughter Eithne in a tower on the sheer rock of Tor Mór, still known as Balor’s Prison. Eithne met Cian of the Tuatha Dé Danann, and their son Lugh grew up to fulfil the prophecy, killing Balor at the Second Battle of Mag Tuired. Earlier texts also tie the headland to Conand’s Tower, a Fomorian stronghold of the cycle.
The landscape carries the story. The Wishing Stone, a flat-topped rock near the track, is said to grant a wish to anyone who steps on it or lands three pebbles on its surface. Further along the eastern spur, the sea stacks called Balor’s Soldiers stand off the cliffs.
History and archaeology
Balor’s Fort is a clear example of a promontory fort: a defended headland that uses sheer cliffs on three sides and walls off the fourth. The earthworks are substantial – four massive earthen banks broken by three deep fosses (ditches), still plainly visible across the neck of the peninsula. The natural defences are the point; the builders only had to close the one approachable side.
No radiocarbon dating has been done at the fort itself, so its exact age is open. Comparable promontory sites across Donegal range from the Bronze Age to the Early Medieval period, and Balor’s Fort most likely belongs somewhere in that span.
Walking the site
The approach is part of the East-Island Walk, a route of roughly four hours that can be guided or done on your own. The track is uneven and drops away sharply near the cliff edge, so sturdy footwear and steady care matter; this is not a walk for young children or anyone unsure on rough ground. On the way you pass the Wishing Stone and Balor’s Soldiers, with long views across Bloody Foreland and the Derryveagh Mountains on a clear day.
At the tip, Tor Mór (Balor’s Prison) rises as a sheer stack. You cannot climb it, but standing at its base gives the clearest sense of why the site was chosen.
Several other features are easy to reach from West Town, away from the fort:
- Round tower – A stone tower dating to the 6th–7th century, traditionally linked to St Colmcille.
- Tau Cross – A rare 12th-century T-shaped cross near the pier, one of only two surviving examples in Ireland.
- Lighthouse and torpedo – The 19th-century lighthouse stands beside a recovered World War II torpedo, a reminder of the island’s wartime role.
Wildlife and birdwatching
The fort and its cliffs fall within an Important Bird Area. From April to August the sea stacks and cliff ledges hold active puffin colonies. The island’s low grasslands are also habitat for the globally threatened corncrake, whose rattling call is best heard at dawn, and you can expect guillemots, razorbills and kittiwakes along the cliffs. Early-morning walks are the quietest, before the Atlantic wind gets up.
Practical information
Getting there – Tory Island is reached by passenger ferry from Magheroarty Pier, operated by Donegal Coastal Cruises. Sailings are fuller in summer and reduced in winter; crossings can be rough and cancellations are common in storms, so build slack into your plans. Check live timetables and book through the ferry website before travelling.
Getting around the island – Private cars are not permitted. Bicycles can be hired in West Town, which makes the coastal loop easier. The track to Balor’s Fort is steep and uneven, unsuitable for wheelchairs and difficult for young children.
Dog policy – Dogs are discouraged on the eastern trails and near the fort, because of ground-nesting seabirds and the puffin colonies.
Facilities – West Town has a small café, a craft shop and public toilets. There is no parking on the island; everyone arrives on foot from the ferry.
Best time to visit – April through August brings the mildest weather, the fullest ferry schedule and peak puffin activity. Winter visits are possible but heavily weather-dependent.
Contact and bookings – Donegal Coastal Cruises: +353 (0)74 9531320 | http://www.toryislandferry.com
Check the ferry forecast before you commit to a date – the Atlantic swell, not the timetable, decides whether the boat sails. Arrive early in the day for the best light over the earthworks and the quietest walk out to the cliffs.