The Doon fort

Doon Fort is an Irish archaeological site near Ardara in County Donegal. Built on a small island in the middle of Lake Loughadoon, this circular dry-stone fort is thought to have been constructed between the late Iron Age and the early Middle Ages. Magnificent, it is a perfect example of an Irish circular fort, with its high, thick walls.

Visit Doon Fort

A fort used by famous clans

Although it’s difficult to estimate the origins of the construction, one thing is certain: the fort was occupied by the Breslin clan in the 5th century, before becoming the home of the O’Boyle clan, another highly influential family in the region.

At the time, this type of fort was a symbol of governance and power. Its isolated location, right in the middle of Loughadoon lake, provided the occupants with a strategic defensive position of choice: it enabled them to keep an eye on comings and goings on the lake, while remaining safe behind the building’s substantial walls.

Now in ruins, the site is considered a true Irish heritage treasure. Although its condition is deteriorating over time, numerous preservation projects were launched between 2010 and 2017. This will ensure the site’s preservation for many years to come!

Doo Fort is usually open to visitors. You’ll need to take a boat to reach the island, but the spectacle is well worth the detour. It has to be said that the building coexists in the midst of a fabulously untamed natural environment, where the landscape changes with the light and the weather. It’s a great way to plunge into the heart of Irish history and cut yourself off from the rest of civilization… all the while enjoying breathtaking views!