6.1 Intertidal mudflats
Feature/Facility 2 - Intertidal mud and sandflats
Description
The Gibraltar Point sector of the Wash includes some three miles of coastline comprising a pattern of intertidal mud and sand.  Due to the shallow shelving nature of the coastline, there is a broad sub- littoral zone.  The key areas are unvegetated although marine algae may be extensive on the mudflats and Salicornia represents the pioneer stage of saltmarsh development at the upper reaches.
To the south, extensive mudflats are contiguous with the Wash, interrupted only by the course of the Steeping River which demarcates the southern boundary of the NNR.  The Steeping outflow provides an input of freshwater, silts and nutrients.  The development of the flats has been assisted by kidding which was instated during the 1920’s-40’s.  Evidence of this is visible during periods of scour.

Favourable Status
That existing extent of mud and sandflats are perpetuated on the site and are, as far as possible kept free from pollution and disturbance.