Today we’re on the southern shore of the Blackwater estuary, passing the site of the Battle of Maldon and walking through Maylandsea and Ramsey Island.

One of the most remarkable coastal walks in England. Seventeen miles without habitation, save for the religious community beside the 7th century St Peter’s Chapel.

Discover Wallasea Island, the largest man-made wetland in the UK, created by the RSPB with sea-wall breaches and soil from the Crossrail project.

We take the north side of the Crouch estuary, through Althorne Marina and North Fambridge, with a brief inland diversion to the old rail line at Stow Maries.

Inland at first, to avoid sea-wall breaches. We regain the tidal River Crouch at South Fambridge and stay on its sea wall until we reach the Paglesham peninsula.

The Roach Valley Way takes us by its namesake river to Rochford. From here we complete a loop into the Cherry Orchard Country Park and back to Rochford.

After a short inland start, we circumnavigate Barling Marsh on the southern side of the Roach estuary. Turning south, we skirt Gt Wakering before reaching the open sea.

Straight along the coast, on the prom at Southend and past the seafood stalls at Leigh. Thames-side marshes take us to Benfleet where we then loop around Hadleigh Park.

From Benfleet station. Explore the many faces of Canvey – residential, holiday and industrial, with nature reclaiming the island’s western side.

From Benfleet Station, up the tidal creek north of Canvey Island, we pass across marsh, landfill and railway – a low-lying landscape created and shaped by water. In collaboration with the InspiralLondon collective.