Dragonfly
A feast for the eyes. This is the single best place to see dragonflies in Greater London, Essex and Hertfordshire. Visit the site between May and September and you could see up to 23 different types, that’s over half of Britain’s native species on this SSSI (Site of Special Scientific Interest) site. A Tree Park, once the Greater London Council’s Arboretum is next to the Sanctuary and you can walk along the Meridian Line during your visit.