Parc de la Deûle, Periurban park in Lille Metropolitan Area, France

Parc de la Deûle is a large regional park spanning multiple municipalities in the Lille metropolitan area, featuring meadows, woodlands, streams, and ponds connected by walking trails and cycling paths. The park terrain allows visitors to explore diverse natural landscapes and transition between different ecological zones throughout their visit.

The idea of a large park south of Lille dates from the 1960s, when the state proposed it to protect the groundwater tables threatened by urban and industrial pollution; farmers opposed it as too space-consuming. After some twenty years of studies, the park took shape in the 1990s around three communes, Santes, Houplin-Ancoisne and Wavrin, as a mixed syndicate. Its landscape project, carried by three landscape architects of the Jacques Simon–JNC International team, won the French Prix du paysage 2006 in 2007 and the Council of Europe Landscape Award in 2009.

The MOSAÏC gardens within the park showcase ten distinct garden spaces that represent the cultural diversity of immigrant communities in the Lille metropolitan region. You can walk through these different garden areas and observe the plantings and designs that reflect various traditions and heritages.

The Relais Nature visitor center provides guidance and information for those interested in learning about park activities and natural features. Wear sturdy footwear as paths can vary, and allow time to explore the different zones since the area spans several municipalities.

The park was designed to serve as a water protection zone that safeguards groundwater resources for the Lille metropolitan area through natural filtration systems. This ecological function works silently beneath visitors' feet, making the park essential infrastructure for regional water supply despite its appearance as simply a place for recreation.