Cavenham Heath - Enflish Heritage managed site. With walking distance of house.
Webpage: http://www.naturalengland.org.uk/ourwork/conservation/designatedareas/nnr/1006032.aspx

Welney Wildfowl Trust home webpage: http://www.wwt.org.uk/visit-us/welney

Lackford Lakes - Suffolk Wildlife Trust site within 10 minutes drive.
Web page:http://85.158.158.143/nr/sites/lackford.html

Wicken Fen - National Trust
Web Page http://www.wicken.org.uk

Lakenheat Reserve - RSPB site within approximately 15 minutes drive.
http://www.rspb.org.uk/reserves/guide/l/lakenheathfen/index.aspx