Six days
From Conwy Castle to Cardiff Castle, a legendary multi-stage, ultra running journey down the spine of Wales. This is the world’s toughest mountain race.
380km
The average daily distance is 63km – that’s more than 1.5 marathons a day! Be sure to pace yourself.
17,400m
That’s almost twice the height of Everest – enter only if you’re brave enough.
Runners can select Trees not Tees during registration in place of receiving their t-shirt.