Cities are becoming increasingly vulnerable to climate change, and there is an urgent need for climateproof resilient cities. Groundwater issues are not always visual to stakeholders so raising awareness and capactiy building is of great importance. The Climatescan adaptation tool www.climatescan.nl is applied as an interactive tool for knowledge exchange and raising awareness on Nature-Bases Solutions (NBS) targeting young professionals in ClimateCafes. Climatescan is a citizen science tool created through ‘learning by doing’, which is interactive, open source, and provide more detailed information on Best Management Practices (BMPs) as: exact location, website links, free photo and film material. Groundwater related BMPs such as stormwater infiltration by swales, raingardens, subsurface infiltration in Sponge cities are mapped and published on social media.