Ramblers have drawn up a 67-page dossier outlining areas of Sussex they think should be covered by new right-to-roam laws.
The Ramblers' Association has spent three months checking the draft maps of downland, heathland and commons in East and West Sussex that should be opened to walkers.
The south side of Devil's Dyke and Cliffe Hill, near Lewes, are not on the maps but the dossier says they should be opened to the public.
Nigel Sloan, of Sussex Ramblers, said even if the modifications were accepted the new laws were unlikely to have a big impact in the county.
He said: "Much of the Wealden heaths are now wooded and woodland was, unfortunately, not included in this law.
"The tight definition of downland means effectively all we are talking about is the north-facing escarpment of the South Downs and a few other scattered strips of rough grassland which escaped the plough thanks to their steepness."
The earliest ramblers could get to walk on the new access land is 2003.
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