Yr Wyddfa Sea to Summit
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About the race
Yr Wyddfa Sea to Summit is a one day, mass participation mountain ultramarathon that runs from sea level at Caernarfon to the summit of Yr Wyddfa and finishes at Bron y Feds Uchaf, Rhyd Ddu. The route is fully waymarked with bright orange arrows and backed by professional mountain safety staff at key locations. The event combines on-route pit stops, route signage and paid medical support provided by Trail Med, including paramedics, doctors and a private ambulance.
Cut-offs are applied and set to a 3 mph completion pace; pit stops are located along the course and offer facilities such as toilets, medical help, water, hot drinks, salty snacks, sweets and fruit. There is a mandatory kit list for participants and Rat Race require entrants to be over 18 on the day of registration. The organisers reserve the right to change the course for safety or operational reasons.
Logistics options include a pre-bookable parking pass at the finish and a shuttle bus from the finish to the start; supporter drop off at Caernarfon Castle is possible and a taxi service back to Caernarfon is arranged after the event. Completion earns a Sea to Summit Yr Wyddfa finisher medal and participants in all three Sea to Summit events can earn the Trilogy gold medal. Charity fundraising options and transfer and refund protections are offered under the event terms. Visit the organization's website for the most recent information.
- 29 miles (47 km) with 5600 ft ascent
- 20.5 miles (33 km) with 5175 ft ascent (alternative via PS2)
