(S/E) Head to the Causeway, crossing the road to the adjacent pavement. Head northeast along the pavement, past the commercial building, turn left.
(1) Head northwest out between the pool and tidal estuary, the route follows around to a wider walkway, then turns left to the end of the jetty. Alternatively, turn right along the bank of Carnsew Pool. This will lead to the locks, at which point the app may suggest right to (2), which will miss out the views from the end of the jetty. Turning left, this is a there-and-then back section. At the end of the jetty, retrace your the route, bearing southeast past the superstore.
(2) Cross the main road at the pedestrian crossing, head southeast, under the viaduct, past the Heritage Centre, into Foundry Square, past the White Hart Hotel, on the left. Turn left next to the Pasty shop, that is, if you can get past the Pasty shop, without getting one - recommended though. On the right is an old high wall; follow it around to the entrance. Walking through the play area to a path leading upstream, with Mill Pond appearing on the right.
(3) As the pond ends, and the path splits, turn right onto the lane, known as Mill Pond Avenue. Continue and handrail the pond, which is on the right. At Foundry Hill Lane, turn left, then right into Foundry Lane, following it around to Plantation Lane, continue heading in a northerly direction. On the right, a track leads up and over the main railway line; follow it, and it will lead into 'The Plantation'. The Plantation has many paths to explore, as with this route, giving a choice to go directly to (4).
(4) The route leaves the mound, Plantation, through an arch, see plaque in the wall, to a footpath parallel with the main road, following the footpath, southwest, back to (E).