Dún Briste
Natural Landmark in BallinaFree
Knockaun, Co. Mayo, Ireland
About
Dún Briste is a 45-meter-tall sea stack off the coast of County Mayo, formed when a sea arch collapsed in 1393. It is a dramatic, isolated pillar of rock showcasing coastal erosion.
Written from public posts on Instagram. Updated Nov 2026.
Highlights
- 45-meter-tall sea stack
- Located off Downpatrick Head
- Formed by a storm in 1393
- Top natural sight in County Mayo
Details
- Address
- Knockaun, Co. Mayo, Ireland
- Coordinates
- 54.32782, -9.34829
Good to know
Dún Briste is a natural landmark in Ballina, Ireland. Dún Briste is a 45-meter-tall sea stack off the coast of County Mayo, formed when a sea arch collapsed in 1393. It is a dramatic, isolated pillar of rock showcasing coastal erosion.
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