Nestled within Ireland’s breathtaking Wicklow Mountains lies Glendalough Lap of the Gap, an exhilarating marathon that challenges even the most seasoned runners. This race is not just about crossing the finish line; it's about immersing yourself in the raw beauty and rugged terrain of one of Europe’s finest natural landscapes. The journey begins at the historic valley of Glendalough, a place steeped in history and surrounded by lush greenery. As you set off, you’ll be greeted with panoramic views that stretch across rolling hills and dense forests. The route takes runners through winding mountain roads, past roaring waterfalls like Glenmacnass Waterfall, which adds an element of awe to the already stunning scenery. The heart of the race lies in its challenging ascent towards the iconic Sally Gap, a spot known for its dramatic views and rugged terrain. This climb is no small feat but offers runners a sense of accomplishment as they push their limits against nature’s backdrop. Once you crest the gap, it's time to descend into the mystical Lough Tay (Guinness Lake), where dark waters reflect the surrounding mountains in an almost surreal manner. For those seeking a shorter yet equally rewarding experience, the half-marathon offers the perfect blend of steep climbs and exhilarating descents, framed by some of Ireland’s most unforgettable vistas. Both distances are designed to provide runners with more than just a race—they offer an authentic Irish adventure that celebrates community spirit and local support. Organized by Glendalough Athletic Club, this event is deeply rooted in the local sporting culture. Race day logistics are handled seamlessly, ensuring every participant feels well-supported throughout their journey. From start to finish, Lap of the Gap promises an experience where runners can truly connect with nature and each other, making it a must-do for anyone looking for something epic and beautifully Irish. The Glendalough Lap of the Gap is more than just a race; it's an invitation to explore Ireland’s wild beauty on foot. Whether you’re tackling the full marathon or embracing the half-marathon challenge, this event delivers a unique blend of adventure, community support, and breathtaking scenery that leaves runners with memories they’ll cherish for years to come.
Races Offered
Half Marathon
May 22, 2027
straighten
Distance —
21.1K
terrain
Type —
Running
timer
275 days remaining
sell
€65.00
Marathon
May 22, 2027
straighten
Distance —
42.2K
terrain
Type —
Running
timer
275 days remaining
sell
€72.00
Weather History
These values represent the 3-year monthly averages for May in County Wicklow.
thermostatTemperature
7.6° / 14.6°
wb_sunnyFeels like
4.5° / 11.5°
light_mode
Avg sunshine hours
10h 17m
water_drop
Avg rainfall
2.8 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
12.0 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.2)
humidity_mid
Humidity
80.2%
wb_twilight
Sunrise
05:26
nightlight
Sunset
21:17
About County Wicklow
Learn more about the host city, County Wicklow.
County Wicklow is a mountainous region of Ireland's East Coast and Midlands, historically part of the province of Leinster. It's just south of Dublin so it combines ease of access with outstanding scenery. It's often called "the Garden of Ireland" — and does have several fine gardens — but it's more like the recreation park of Dublin.