Achill Half Marathon & 10K

The Achill Half Marathon & 10K is one of Ireland’s most scenic destination running events, held on Achill Island in County Mayo on the country’s dramatic west coast. Taking place in Keel, Achill Island, the race showcases the rugged beauty of the Wild Atlantic Way, with routes framed by Atlantic coastline, open bogland, golden beaches, mountains, and sweeping island views.

The event includes both a Half Marathon and a 10K, making it accessible to runners who want either a challenging 21.1 km island race or a shorter but equally atmospheric coastal run. The Half Marathon follows a circular route around Achill’s spectacular landscape and is known for being beautiful, exposed, and demanding in places, while still manageable for well-prepared recreational runners. The race starts and finishes in Keel, beside the Blue Flag beach, giving the event a memorable seaside base and a strong local community feel.

Approved by Athletics Ireland, the Achill Half Marathon & 10K attracts runners looking for more than just a fast time. It is a race built around scenery, atmosphere, and the experience of running in one of Ireland’s most distinctive landscapes. For travelling runners, it also works well as a race weekend, with Achill offering beaches, walking routes, cycling, surf, traditional hospitality, and access to some of the most dramatic coastal scenery in County Mayo.