Parc de la Fontsanta is located in the south of the Baix Llobregat region and its surface stretches between two municipalities: Sant Joan Despí and Esplugues de Llobregat. The park is in Samontà, an area that is traditionally covered by vineyards and dryland crops but which is fully urban today. The park boundaries are defined by the convergence of the Pont Reixat mountain stream and the Fontsanta stream, which starts in the Collserola mountain range and has a short and steep route, being channelled into the Llobregat river before leaving the park