The Wash National Nature Reserve

England’s largest estuary forms the tidal heart of the wider Fens, supporting immense mudflats, saltmarshes and internationally important wildlife.

The Wash is a vast tidal landscape of mudflats, saltmarsh and creeks where four counties meet. Its exposed ground and rich feeding areas support internationally important populations of birds, while changing tides reshape what can be seen from shore. The scale is part of the experience: horizons, light and weather reveal the relationship between the inland Fens and the sea. View it from managed coastal paths and reserves rather than venturing onto the mudflats, and plan wildlife visits around tide and season.