Only the wildfowlers' huts on Wootton and Wolferton Marshes and the miltary activity on Holbeach and Wrangle Marshes indicate a singificant human presence in this area. It is important to sustain this sense of isolation. The engineered structures of the sea banks offer the largest area of grassland near the coast. To the sea, the shifting channels and their marker bouys also form important landscape elements as does the intermittent passage of shipping down the main channels to King's Lynn, Wisbech, Sutton Bridge and Boston. Reclaimed Unsettled Marsh lying between the surrent sea bank and at least the first previous sea bank, from Boathouse Creek Snettisham in Norfolk to Gibraltar Point in Lincolnshire, this area is essentially of an open character, predominantly arable with ditches dividing the fields and running at the base of the sea banks.
Fields are very large.
Birdlife is important here too, adding interest to the scene as do the occasional patches of grassland with grazing animals and reed beds where these fringe the ditch lines. Settled Marsh has a miore diverse landscape than that near the coast, with enough buildings to play an important part in the scene. In many areas native trees and scrub still predominate, whilst in other areas there is a tendency to replant with conifers. Seaside Dunes Extensive areas of dune systems border the sea on either side of the mouth of the Wash. North of Gibraltar Point lies the most extensive area of dunes. Here the landscape is more intimate with a variety of features interrupting the long views.