The Severn estuary has the second highest tidal rise and fall in the world. Five major rivers flow into this estuary and sundry smaller rivers. The major rivers are the Severn (UK’s longest river at 220 miles), Wye, Usk, Parrett and Avon.
The Severn estuary is internationally recognised for its coastal, intertidal and subtidal habitats. It includes the largest aggregation of salt marsh habitat in the south and southwest of the UK. But these habitats are under threat and so are the species which rely on them for food and shelter.
Of particular importance are the thousands of shoreline birds which come here in winter, over 70,000 of them. It is also a major migratory route for fish such as salmon, sea trout and eels.
It is one of the most designated estuaries because of the significance of its wetland habitats and wildlife.
So its designations include all of the following:
Find links to other fascinating salt marsh information on our salt marsh index page.
The reserve lies between Portishead and Royal Portbury Dock.
Access points are from Wharf Lane in Sheepway just off Junction 19 of the M5 motorway and from Portishead marina.
This website is created for and maintained by Friends of Portbury Wharf Nature Reserve.
You can contact the Friends at firstname.lastname@example.org
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