A 200 mile ultramarathon following an extended west–east route across England and Wales between major estuary crossings. The course combines long-distance footpaths, rural trails and connecting road sections, with cumulative elevation gained through rolling terrain rather than high mountain passes. Participants cover significant distances between settlements, with race logistics, navigation approach and checkpoint support defined by the organiser’s official guidance.

• Other races at the same event:
The Bridge 100 Mile Ultra Marathon