Sea 2 Summit - Offa's Dyke Half/Full/Ultra
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Event overview
Sea 2 Summit - Offa's Dyke Half/Full/Ultra is organised by Out Fit and takes place on 7 December 2025 at Prestatyn Nova Centre. The event offers three distances:
- Half Marathon
- Full Marathon
- Ultra Marathon - 33 miles
The route starts at Prestatyn seafront and follows the Offa's Dyke National Trail in a southerly direction into the Clwydian Hills. Registration requires entrants to choose one of two start waves for each distance; slower runners start one hour before faster runners.
Course and logistics
The Ultra finishes at the summit of Cyrn y Brain. Finish summits and recommended pick-up points require a walk of about 25-35 minutes from the summit to the car park. Checkpoints on the route include:
- CP1 Mynydd y Cwm, 11 km (grid SJ0805976749)
- CP2 Grove Hall, Bodfari, 20 km (grid SJ1034069887)
- CP3 Clwyd Gate, 40 km (grid SJ1641958176)
- CP4 Llandegla, 45 km (grid SJ1959452400)
Coach travel from the finish car park back to the start is available on a first come, first served basis; competitors are advised to have a support driver available in case they need to leave early. The event is electronically timed and provides a finisher medal.
Participants must carry minimum kit due to terrain and winter weather, including a full body waterproof cover, hat and gloves, spare thermal top, foil blanket, route map, compass, whistle, a fully charged mobile phone, and at least 500 ml of water to start.
Course record times by distance and gender are listed for reference. Visit the organization's website for the most recent information.
