Race details
The Sea2Sky 10K & 5K is an annual mixed-terrain race in Newcastle, County Down on Friday 17 July 2026. The 10km route starts on the promenade in Newcastle and the 5km in Donard Forest, both on a mix of road and track before climbing up through the foothills of the Mournes. Runners are rewarded with stunning views over Newcastle and beyond before descending to finish on the promenade.