Antisocial behaviour and misuse of the area has forced Whisby Nature Park to close a section of land and public access to the Apex Lake.
The circular route around Teal Lake at the park will be closed from Thursday, June 11, but the western path to the viewpoint will remain open. This will enable the lake to become a quieter area for wildlife.
A decision was made after discussions between Cemex, who own Apex Lake, Lincolnshire Wildlife Trust and North Kesteven District Council.
Lincolnshire Wildlife Trust will also close the section of land that it manages around the north and east sections of Teal Lake.
In a post on social media Whisby Nature Park said: “This decision follows continued antisocial behaviour and misuse of the area and provides an opportunity to reaffirm Teal Lake as a wildlife sanctuary area within the reserve.
“However, in order to continue to allow visitors to observe and enjoy the wildlife, the western path to the viewpoint will remain open.”