Inch Castle

Inch Castle comprises ruins positioned on the southern tip of an island in Lough Swilly, commanding views across the water and coastal terrain. The location was strategically chosen to monitor access to these waterways and control movement through the region.

The fortification was constructed in 1430 under Neachtain O'Donnell as part of a defense network controlled by the O'Doherty family in the medieval period. This castle was one of several structures that regulated trade and movement across local waters.

The ruins reflect how the O'Donnell and O'Doherty families demonstrated power across this region. Visitors can sense how crucial such structures were for controlling the waters and trade routes nearby.

The ruins are located on the southern side of an island and are accessible via the R238 road, which provides a clear approach for visitors. Access on foot from there involves uneven ground and exposure to wind and weather from the open water.

From the ruins, visitors can see another castle visible on the mainland across the water, creating a visual connection between medieval defense structures. This link between the two fortifications demonstrates how families extended their control across the entire region.

Location: County Donegal

GPS coordinates: 55.04760,-7.49620

Latest update: December 9, 2025 12:23