THE world's toughest multi-stage mountain race started in North Wales this morning.

At 6am, 298 ultra runners from 25 nations set out from Conwy Castle to tackle the 2023 Montane Dragon’s Back Race.

Route checking. Photo: Montane Dragons Back Race | No Limits Photography

Route checking. Photo: Montane Dragon's Back Race | No Limits Photography

Regarded as the world’s most challenging mountain race, the event will see participants tackle 380km of distance and 17,400m of ascent over the next six days.

All smiles at the start of the race. Photo: Montane Dragons Back Race | No Limits Photography

All smiles at the start of the race. Photo: Montane Dragon's Back Race | No Limits Photography

The Montane Dragon’s Back Race route heads south along the mountainous spine of Wales and participants face climbs up iconic peaks such as Yr Wyddfa, Tryfan, the Glyders, Cnicht, the Rhinogs, Cadair Idris, and Pen y Fan, as they aim to reach Cardiff Castle on Saturday, September 9.

Heading to Conwy Castle. Photo: Montane Dragons Back Race | No Limits Photography

Heading to Conwy Castle. Photo: Montane Dragon's Back Race | No Limits Photography

For the first time, runners at this year’s race can choose to take on the shorter ‘Hatchling’ course, tackling the first or second half of each day during the event.

Competition will be fierce at the front of the race, with some of the world’s leading male and female ultra-runners taking part in the race.

Runners head along the route. Photo: Montane Dragons Back Race | No Limits Photography

Runners head along the route. Photo: Montane Dragon's Back Race | No Limits Photography

However, for many athletes, the priority will simply be to complete the course in the allowed time. Read a full preview at Competition set to be fierce at the 2023 Montane Dragon’s Back Race® — Montane Dragon's Back Race® (dragonsbackrace.com).