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Dunmanus Castle

Dunmanus Castle

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Dunmanus Castle

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5.0

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Location: Cork, Munster, Ireland

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Willem VS

March 7, 2026

Cycling

The ruins of the 15th-century O’Mahony Tower stand on the edge of Dunmanus Bay. The castle once guarded the bay and the trade routes along the south coast of West Cork. Today, it stands as a striking, weathered silhouette in the open coastal landscape.

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Natalie

April 11, 2023

Cycling

On the banks of a small natural harbour within Dunmanus Bay, you can explore the lower level of Dunmanus Castle. Access to the upper levels, where the living quarters were, was only possible through the first floor door (above and to the left of the ground floor entrance) so sadly cannot be reached today. It was built by the O'Mahony Clan in the early 15th century.

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Durrus – Dunmanus Castle loop from Durrus

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Dunmanus Bay & Goleen loop from Barley Cove on the Wild Atlantic Way

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Mizen Head – Altar Wedge Tomb loop from Crookhaven

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Hard

Details

Informations

Elevation 10 m

Weather

Wednesday 13 May

13°C

8°C

32 %

Additional weather tips

Max wind speed: 31.0 km/h

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Take Me There

Location: Cork, Munster, Ireland

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Dunmanus Castle

#1.

Durrus – Dunmanus Castle loop from Durrus

#2.

Dunmanus Bay & Goleen loop from Barley Cove on the Wild Atlantic Way

#3.

Mizen Head – Altar Wedge Tomb loop from Crookhaven

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