Also there is a Wildfowl and Wetlands Trust (WWF) site at Washington.
Other beaches (blue flag, from a BBC post):
Sandhaven, South Shields, Tyne and Wear
Tynemouth, Cullercoats, Tyne and Wear
Tynemouth, King Edwards Bay, Tyne and Wear
Tynemouth, Longsands South, Tyne and Wear
Whitburn North, Seaburn, Tyne and Wear
Whitburn South, Roker, Tyne and Wear
Whitley Bay south, Tyne and Wear