Snowdonia in a Day

Conwy, United Kingdom • 7 Jun 2025

Snowdonia in a Day is a challenging endurance event held in Snowdonia National Park, Wales. Participants traverse 60 km (40 miles) along the Snowdonia Skyline, gaining 4,500 meters in elevation while crossing 24 mountains across the Carneddau, Glyders, Snowdon range, and Nantlle. The route starts in Conwy in the east and finishes in Nebo in the west, primarily on mountain trails and high mountain terrain.

This fully guided and supported challenge includes experienced mountain runner guides, refueling stations with hot and cold food, transport between start and finish, and a support vehicle for drop bags. It is ideal for runners preparing for the Dragons Back race. Visit the organization's website for the most recent information.

Race information

65 km
65km (40 Miles)
Visit the organization's website for the most recent information.
Trail runs nearby

Free women only trail meet up on 28 June 2027 offering social runs of 5 to 10 km led by SheUltra Ambassadors. Loggerheads session includes a 10 km route; places are limited and parking is pay and display.

A short fell race at Padarn Lake Hotel in Llanberis covering 3.1 km with 192 m of climb. It is a warm-down for the Joe Brown/Caernarfon Tyres Midweek Series and follows the North Wales Mid Week Series schedule.

A fell race of 8.7 km with 700 m ascent around Moel Siabod, partially marked and requiring navigation. Entry on the day is £5 and junior races are included as part of the Capel Curig Village Festival.

A running race from the Druid Inn near Llanferres covering 8 km with 366 m of climb. The course is BS partially marked and entry is £4 on the day; parking is limited so car sharing is advised.

Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.