Crawley Borough Council has asked dog walkers to keep their pets on leads around Tilgate Lake.
This follows several dog attacks on wildlife by the lake, one of which resulted in the death of a cygnet. Other incidents include dogs chasing a deer which resulted in the deer dying of a heart attack.
A consultation with dog walkers and visitors to Tilgate Park showed that whilst two thirds of dog walkers were against dogs on leads, almost all non-dog walkers wanted dogs on leads.