Ponds are small waterbodies (<10 ha) that can serve as refuge for a range of species including endangered and rare ones. They provide food and water for terrestrial animals (e.g. birds, bats). This role in supporting biodiversity is even more crucial in cities where they are stepping-stones between natural patches. Our current knowledge of their ecology, especially the smallest, artificial and privately owned garden ponds is limited. Their ecosystem services (reducing the urban heat island effect, aesthetic and cultural services etc.) directly benefit the owners of such ponds. This creates an opportunity to engage pond owners in citizen science which both aids researchers in data collection and can be a way of environmental education.