Seven Sisters Skyline

SEP
19
2026
A mountain running event along the Seven Sisters ridge in the Derryveagh Mountains offering 55km, 30km and 16km races. The 55km and 30km are UTMB Index races and several prize purses are awarded.
Sat 19 Sep 2026
55 kilometers 30 kilometers 16 kilometers

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Seven Sisters Skyline

Seven Sisters Skyline is a mountain running event held on the Seven Sisters ridge in the Derryveagh Mountains. The event typically welcomes 500 runners and forms part of the Skyrunning UK & Ireland Series. The route has featured in the World Mountain Running World Cup and includes very rugged terrain with razor‑sharp ridges, steep climbs, rocky summits, and technical descents. Elevation gain reaches 4,000m or more on the longest route.

Distances

  • 55km Full Skyline, 4,000m+ ascent across the Derryveagh Mountains
  • 30km Skyline Challenge, point to point traverse from Muckish to Errigal
  • 16km Skyline Intro, start at Altan Track with loop around Altan Castle

The 55km course summits six peaks on the outward leg: Mackoght (555m), Aghla Mór (584m), Aghla Bheag South (602m), Aghla Bheag North (564m), Leargacha (470m), and Muckish (666m). The 55km and 30km races are UTMB Index events, allowing participants to earn points toward UTMB World Series qualification. Prize information includes a combined prize purse of €10,000 for the 55km and 30km events, cash prizes for the top five male and female finishers, and a €7,500 prize pool associated with the national skyrunning championships held on the 55km route.

The organisers follow national outdoor activity event guidelines and list partnerships with regional tourism and outdoor organisations. Visit the organization's website for the most recent information.

55 km
Skyline 55k
30 km
Sky Challenge 30k
16 km
Altan Castle 16k
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