In December 2020, the magazine of the Water Agency reports on the progress of the Marathon de la Biodiversité project. The project has clear and symbolic objectives: 42 communes, 42 km of hedges and 42 ponds dug. Sébastien again describes the ambitions of Domaine Dupré in Saint-Lager: almost 600 metres of hedges already, a number that will only increase in the future.