2026 Colne Valley Path Marathon - Aug 23

Point-to-point trail (self-navigated) marathon course in Greenstead Green / Colchester with 350m elevation gain. A marathon-distance trail challenge tracing the Colne Valley Path from the Greenstead Green countryside through Great Yeldham and 'the mighty oak' to Cymbeline Meadows in Colchester. The underlying path is only about 23 miles (37 km), so the marathon route runs over-distance (roughly 26.2-27 miles) and is NOT a certified, measured 42.195 km course — it is self-navigated by GPX file or