Achill Half Marathon & 10K 2026

Running a half marathon or 10K on Achill Island is a different proposition to most race-day mornings. The course takes you across Atlantic bogs, past golden beaches and under the shadow of Slievemore mountain, all on a circular route that starts and finishes at Keel village beside the Blue Flag beach. Now in its 21st year, the Achill Half Marathon & 10K has built a loyal following among runners who want scenery alongside the stopwatch. Both distances are approved by Athletics Ireland, and both sell out fast - the 2026 edition filled up shortly after entries opened, so check the waiting list if you haven’t registered yet.

What to expect

The half marathon covers 21km of paved Atlantic coastline road, with the course looping out through Bunnacurry, dropping to the Valley crossroads, and returning via Dugort and the flanks of Slievemore before bringing runners back into Keel. There are two notable climbs - one around mile 3.4 and another at mile 10 - so it rewards runners who have put in some hill work. The 10K offers a shorter but equally scenic route for those building up distance or running with younger family members. Race start is 10:30am. The atmosphere is firmly community-centred; spectators line the route and Keel village comes alive on the day. Bring layers for after the finish - even in July, the Atlantic wind can cut through a damp running top.

Getting there

Achill Island sits off the north Mayo coast and is reached by a fixed bridge at Achill Sound, near Mulrany - no ferry required. From Westport it is roughly 45 minutes by road (the N59 west); from Castlebar allow around an hour. Dublin is approximately three hours by car via the M6 and N17. There is no direct public transport to Keel on race day, so most runners drive or arrange a lift from Westport. Parking is available in and around Keel village; arrive with time to spare as spaces fill up on busy summer weekends.

While you’re in Achill

After the race, Keel’s pubs and cafes are well placed for a post-run coffee or something stronger. The island has one of Ireland’s finest Atlantic drives, the Silver Strand at Dugort (which the half marathon course passes), and the deserted village on the slopes of Slievemore - a haunting reminder of the Famine era that is worth an hour of your time. There is more to see in Achill and across Co. Mayo.

Good to know

• Date: Saturday 4 July 2026
• Start time: 10:30am
• Distances: Half marathon (21km) and 10K
• Entry fee: Paid entry; 2026 registration is full - join the waiting list by emailing info@achillmarathon.com with your name and preferred distance
• Official site: achillmarathon.com
• Organised by: Achill Half Marathon committee, approved by Athletics Ireland