Eden Marathon and Half-Marathon

OCT
18
2026
Run the scenic Eden Marathon or Half Marathon at the iconic Eden Project in Cornwall. Tackle a hilly, mixed terrain course through mining heritage and countryside, then celebrate with a themed medal plus a pasty and beer.
Sun 18 Oct 2026
Marathon Half Marathon

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Event overview

The Eden Marathon and Half-Marathon is an annual running event held at the Eden Project in Cornwall. The event features two distances:

  • Marathon
  • Half-Marathon

The course is multi-terrain and hilly, described as running through areas of mining heritage and countryside. The Marathon route is roughly 70% on trails, paths and private roads and 30% on public roads. The Half-Marathon is roughly 60% on public roads and 40% on trails and paths. All finishers receive a themed medal; every runner is provided with a pasty and a beer. Races use chip timing and offer free online analysis of results via RunPix.

Course services, rules and practical information

Water is provided approximately every three miles using non-plastic recyclable cups, and isotonic drinks are supplied at specific mile points. The Marathon has a strict overall cut-off of five and a half hours and interim cut-off checks (for example, diversion at seven miles if not reached within one and a half hours). There is no cut-off for the Half-Marathon. Age limits are 18 or older for the Marathon and 17 or older for the Half-Marathon. Facilities include a baggage storage area and admissions vouchers granting free entry to Eden for runners and accompanying supporters on race day. Showers are not available. Headphones are not permitted in line with race regulations. Refunds and transfers are subject to the event terms and conditions. Visit the organization's website for the most recent information.