The Northumbrian

The Northumbrian is an ultimate endurance triathlon event set in the picturesque Kielder Water and Forest in Northumberland. This challenging competition features both full and half-distance iron triathlons, incorporating a 2.4/1.2-mile swim, a 112/56-mile bike ride, and a 26.2/13.1-mile run along scenic trails. Launched in 2022, the event celebrates the spirit of adventure and achievement, attracting individuals and teams alike.

Participants receive various perks, including a cycling jersey, swim cap, electronic timing, and a finisher's medal. The next edition is scheduled for June 29, 2025, promising an unforgettable experience for all athletes. Visit the organization's website for the most recent information.