The Snowdonia Half Marathon is a breathtaking race set in the heart of Snowdonia National Park in Wales. Runners are challenged with a half marathon route that weaves through rugged mountain paths, scenic valleys, and charming Welsh villages, offering stunning views of the surrounding landscape. Known for its tough course, which includes both uphill and downhill sections, the event attracts competitive runners and outdoor enthusiasts looking for an unforgettable running experience. The Snowdonia Half Marathon is a highlight for many trail runners, providing a combination of adventure, beauty, and physical challenge. With the majestic mountains of Snowdonia as a backdrop, this race offers participants an opportunity to experience some of the most beautiful and dramatic landscapes in the UK.
Race Date:
11 May, 2025
The Snowdonia Half Marathon, organized by Run Wales, returns on May 11, 2025, offering a breathtaking yet challenging course with 585 meters of elevation gain. Starting and finishing in Llanrwst, the route winds through Snowdonia National Park, featuring steep climbs, stunning lake views, and rugged forest trails.
Weather based on historical averages. Route data provided by Strava, based on last year's race.
The Snowdonia Half Marathon, organized by Run Wales, returns on May 11, 2025, offering a breathtaking yet challenging course with 585 meters of elevation gain. Starting and finishing in Llanrwst, the route winds through Snowdonia National Park, featuring steep climbs, stunning lake views, and rugged forest trails.
The Snowdonia Half Marathon is 21km long.
The Snowdonia Half Marathon takes place in Eryri National Park, United Kingdom.
The Snowdonia Half Marathon elevation gain is 585 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Snowdonia Half Marathon, organized by Run Wales, returns on May 11, 2025, offering a breathtaking yet challenging course with 585 meters of elevation gain. Starting and finishing in Llanrwst, the route winds through Snowdonia National Park, featuring steep climbs, stunning lake views, and rugged forest trails.
The Snowdonia Half Marathon is 21km long.
The Snowdonia Half Marathon takes place in Eryri National Park, United Kingdom.
The Snowdonia Half Marathon elevation gain is 585 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Snowdonia Half Marathon or Run Wales. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Snowdonia Half Marathon website.