The Floodplains Forest Reserve run by the Parks Trust in Old Wolverton. This has been created of the last few years and just being opened to the public to walk around. Has a couple of hides too. Some work to do yet but it is already attracting wildlife. Spotted Teal, Lapwing, Redshank, Shoveler, Coot, Mullard, Canadian Geese and that was just in an hour of my first visit. 
Excellent work by The Parks Trust.  #TheParksTrust