Nestled within Eryri (Snowdonia), Ogwen Yr Helgi Du is a formidable mountain race that challenges even the most seasoned runners. This isn't your typical trail run; it's an expedition through some of North Wales' most rugged and iconic landscapes, requiring technical skills and mental fortitude. At its core lies the 40K Skyrace, officially accredited by the International Skyrunning Federation (ISF). Participants will face steep ascents, exposed ridgelines, and challenging navigation across terrain that demands precision and endurance. This course is tailored for experienced mountain runners who can handle technical ground with ease and efficiency. The 25K race follows a similar ethos but offers a slightly shorter yet equally demanding experience. Runners here encounter rocky descents, steep climbs, and sections where focus and awareness of the mountain environment are crucial. Ideal for those with solid mountain running backgrounds looking to push their limits on an elite course. For runners seeking to transition from trail runs into more technical terrain, the 15K race provides a supportive introduction to mountain racing. Although physically challenging, it includes clear routes and enhanced safety measures designed to help participants build confidence in navigating tougher conditions. Ogwen Yr Helgi Du embodies progression, challenge, and respect for nature’s raw beauty. Whether you're an international skyrunner or stepping into the mountains for the first time, this event offers a genuine and uncompromising experience set against one of Britain's most breathtaking backdrops.
Races Offered
40K
Jul 24, 2027
straighten
Distance —
40K
terrain
Type —
Running
timer
07:00
sell
£82.99
25K
Jul 24, 2027
straighten
Distance —
25K
terrain
Type —
Running
timer
07:30
sell
£55.99
15K
Jul 24, 2027
straighten
Distance —
15K
terrain
Type —
Running
timer
08:00
sell
£38.99
Weather History
These values represent the 3-year monthly averages for July in Capel Curig.
thermostatTemperature
11.3° / 17.4°
wb_sunnyFeels like
9.6° / 15.4°
light_mode
Avg sunshine hours
9h 29m
water_drop
Avg rainfall
5.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
12.8 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.6)
humidity_mid
Humidity
87.3%
wb_twilight
Sunrise
05:10
nightlight
Sunset
21:31
About Capel Curig
Learn more about the host city, Capel Curig.
Capel Curig is a village in the county borough of Conwy, popular with climbers and hillwalkers due to its location in the heart of the Snowdonia National Park.