Grianán of Aileach is probably the best known monument in Inishowen, County Donegal. Situated on a hilltop 250m above sea level the view from the stone fort of Aileach is breathtaking.
At a glance
Entry
Free / cheap
What parents should know
Grianán of Aileach is probably the best known monument in Inishowen, County Donegal.
planning
Information source
Summary and location information adapted from Fáilte Ireland’s Tourism Activities and Attractions dataset, accessed 7 September 2026. Source: https://data.gov.ie/dataset/tourism-activities-and-attractions. Licensed under Creative Commons Attribution 4.0: https://creativecommons.org/licenses/by/4.0/. Check the venue’s own website for current visitor arrangements.
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Today
Moderate drizzle
15°C
Light showers expected — plan for indoor spells
Opening hours
Seasonal details
Plan your visit
Inishowen
Worth combining
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