The toughest race in Wales kicks off tomorrow as dozens of endurance athletes head into the mountains for the Ultra-Trail Snowdonia by UTMB πββοΈπ
The π― mile course through the heart of Snowdonia includes a brutal 9οΈβ£2οΈβ£0οΈβ£0οΈβ£ metres of ascent β°οΈ
πΈ Ultra-Trail Snowdonia by UTMB