The small Lac Ter is frequented by fishermen in summer and by skaters during some very cold winters.
Located to the east of the village Le Lieu, Lac Ter is fed by two streams: the Ecluse and the Séchey. It might be suggested that it takes its name from the tint of its waters which often prevents us from seeing its substance but the truth is that no one is certain of its etymology.
In summer, Lac Ter seduces by its long banks of reeds located on the edge of the shore. It attracts mostly fishermen, who like to wait peacefully that perch, roach fish, gudgeon or pikes bite on the hook.
As Lac de Joux, Lac Ter freezes completely during the very cold winters. In 1900 and 1901, its ice was even exploited and sold. The blocks were transported by sleds to the station of Le Lieu, where they were loaded in wagons. The experiment lasted only two seasons contrary to Lac Brenet, near Lac Ter, where the ice has been successfully exploited for about sixty years.