The Greenhavens Network is working with the University of Sussex on a green spaces mapping project and are encouraging feedback on maps they have started. Take a look at where they have got to and help them update it: https://greenhavens.network/maps/
The map is designed to help you find the many green spaces in Peacehaven as well as Newhaven and Seaford.
Contact the Greenhavens Network with any feedback https://greenhavens.network/contact/