The relationship between societies and their hydrosystems can be understood as a series of connections and disconnections that occur in all domains (e.g., hydrological, geomorphological, ecological, etc.) and dimensions (e.g, longitudinal, vertical, lateral). The use of watercourses creates material and symbolic connections which leads to also consider the sociological, political, aesthetic, and spiritual dimensions of the socio-hydrosystem. Technical progress and the multiplication of infrastructures have contributed to the invisibilization of water resources. The issue of visibility is to be understood as lying at the intersection of relations of perceptions and relations of power which shapes decision-making. As a result, recent water and environmental policies emphasize the importance of connectivity between the various compartments of the socio-hydrosystems, and focus especially on reconnections at all levels. Successfully restoring the socio-ecological connectivity is tied to (in)visibility dynamics that must be taken into account. The objective is to analyze the impacts of the (in)visibility of challenges such as emerging pollutants and hydrological changes in the context of climate change.