The Saltmarsh Trail, as it runs through Burnham, is just part of a 75-mile seawall route around the Maldon District.
It affords a series of shorter walks – or one really long one – with great river views.
The Burnham section in particular, and especially in winter, is blessed with new flocks of birds coming in partly as a result of the Wallasea Wetlands project.
In January/February, for example, you can see flocks of Brent geese, bartailed godwits, oyster catchers, shelduck, plus redshanks, egrets and herons, with diving terns and cormorants more abundant in the summer.
Gulls (herring and black-headed) are here in large numbers all year round.
Almost the entire saltmarsh coast is deemed a Site of Special Scientific Interest (SSSI) and is designated a Ramsar Wetland of International Importance.