Summit 2 Sea - The Offa's Dyke Half Marathon

Prestatyn, United Kingdom • 12 Apr 2026

The Summit 2 Sea - Offa's Dyke Half Marathon is a challenging spring race covering approximately 13.8 miles from the summit of Moel y Parc to the coast at Prestatyn. Runners will ascend over 2,450 feet, starting at over 1,300 feet above sea level, along the scenic Offa's Dyke National Trail. The course features steep hills, well-marked paths, and two feed stations. Participants can choose to start with a warm-up walk from Bodfari or travel directly to the start point. The event is electronically timed, with mandatory safety gear, and offers a rewarding route with stunning views, suitable for both runners and fit walkers. Visit the organization's website for the most recent information.

Race information

14 mi
745 m+
Half Marathon (13.8 Miles)
Visit the organization's website for the most recent information.
Trail runs nearby

Moel Famau 24 is a unique 12- or 24-hour endurance event held on the iconic Clwydian Hill of Moel Famau, featuring a challenging 7.2 km loop with 500 meters of ascent per lap. Participants, including solo runners and teams, aim to complete as many laps as possible within their chosen time frame. The..

The Leeds & Liverpool Canal 130 Mile Race (LLCR) is a challenging non-stop ultramarathon held along Britain’s longest man-made waterway, the Leeds & Liverpool Canal. Starting at Old Hall Street in Liverpool and finishing at Office Lock in Leeds, the 130-mile towpath course offers scenic views throug..

The Dragon’s Back Race is a legendary multi-stage ultra running event tracing Wales’ spine, from Conwy Castle to Cardiff Castle. Over six days participants cover about 380 km with around 16,400 m of ascent, tackling rugged mountains and remote valleys. The format is staged, emphasizing endurance, gr..

UTMB Index

The Dee Way 120 is a challenging ultra-distance trail race following nearly the entire 120-mile course of the River Dee from Llanwchllyn to Prestatyn in North Wales. The route traverses diverse and scenic landscapes, including valleys, historic villages, and coastal paths, offering breathtaking view..

The Yr Wyddfa Ultra 100 is a challenging 102-mile ultramarathon held in Snowdonia National Park, Wales, featuring 5,788 meters of ascent across stunning mountainous terrain. The race starts and finishes in Betws-y-Coed and includes 10 well-supported checkpoints offering refreshments and medical aid...

The Yr Wyddfa Ultra 50 is a challenging 45-mile ultramarathon held in Snowdonia National Park, Wales, starting and finishing in the picturesque village of Betws-y-Coed. Featuring 3,254 meters of ascent, the mountain trail course includes iconic landmarks such as Heather Terrace on Tryfan, the summit..

UTMB Index