Created in the 18th century for fishing, the Marvy pond is now known for its environmental richness. This 16-hectare site of reed beds, natural woodlands and poplar plantations has become a privileged place for the reproduction and wintering of many species of birds.
It has one of the three largest reedbeds in Burgundy (spread over 4 hectares) and is classified in the European NATURA 2000 programme. This exceptional site is the resting place of several species of birds during their migration. The scaup, the Mallard, the Pileated duck or the Shoveler pass by this pond.
The little egret, the grey heron and even the kingfisher can be observed all year round from the observatory provided for visitors. Access to the pond to walk around it must be authorised by the Nièvre Departmental Federation of Hunters, which manages the site.