Lap Of The Gap Marathon | Glendalough

Ireland’s toughest and highest road marathon — a mountain challenge through the heart of Wicklow. ⛰️🇮🇪
Starting in the historic valley of Glendalough, Lap of the Gap takes you deep into the spectacular Wicklow Mountains National Park. Expect sweeping mountain roads, serious climbs, dramatic descents and some of the most unforgettable scenery in Ireland.
Marathon runners will climb past the spectacular Glenmacnass Waterfall, cross the iconic Sally Gap, and take in views towards Lough Tay (Guinness Lake) before completing the mountain loop.
If you're looking for a road race that feels like a proper adventure, you've found it.
🌄 Why Lap of the Gap?
⛰️ Ireland’s toughest and highest road marathon
🌲 A stunning mountain route through Wicklow
💧 Run past Glenmacnass Waterfall
🏔️ Take on the iconic Sally Gap
🌊 Incredible views towards Lough Tay
🤝 A friendly, community-led event organised by Glendalough AC
❤️ Supporting local sport and the community
🏃 Choose Your Challenge
MARATHON
Take on the full mountain loop and experience Wicklow at its most dramatic, from the climbs and high mountain roads to the sweeping descents back towards Glendalough.
HALF MARATHON
A shorter distance with no shortage of challenge. Take on the big climb, soak up the mountain views, then enjoy the reward of a fast, flowing descent.
Come for the challenge. Stay for the scenery. Finish with a story worth telling.
📍 Glendalough, Wicklow, Ireland
🎟️ Enter Today