The Canadian Watershed Information Network (CanWIN) is a Canadian spatial research data infrastructure (SRDI) system hosted at the University of Manitoba and managed by the Centre for Earth Observation Science within the Faculty of Environment, Earth and Resources. We support research and education and inform management, policy and evidence-based decision making within the Nelson River Watershed and into the Arctic via Hudson Bay. By creating an interoperable infrastructure, CanWIN facilitates the discoverability and accessibility of water and climate-related data across the freshwater-marine spectrum.