

Orwell Estuary: the route continues along the Stour and Orwell Walk, heading north, then north-west up the estuary to reach and then cross the mighty Orwell Bridge via a dedicated footway (protected by a barrier from the road traffic). Here the route crosses the river and turns back east, first via the Stour Valley Path and then via the Stour and Orwell Walk, to arrive at the north side of the Stour Estuary mouth at Shotley Gate. Stour Estuary: the route follows the Essex Way west for 15 miles to Lawford Church, before heading north on a connecting footpath across the riverside meadows to reach Flatford Mill in the heart of 'Constable Country'. Of the remainder, the majority follows very minor tarmac lanes, with just a few short sections of more major road, and for completeness a few short stretches of energy-sapping shingle and sand to negotiate as well! Over 85% of the race route follows waymarked dirt or grass trails.

Starting on the Harwich Esplanade close to Low Lighthouse, the race route quickly leaves behind the urban coastal strip and escapes into the beautiful unspoilt countryside that surrounds the vast majority of the five Essex and Suffolk Coastal Estuaries that define the structure of the route.
