Aquatic ecosystems provide diverse habitats and support biodiversity and ecosystem services that are essential to life on Earth. However, aquatic urban ecosystems often become polluted by garbage and noise, and more. Their space decreases and their ecosystems are threatened, leading to deteriorating health conditions for humans, animals and plants. In this context, the EU-funded OneAquaHealth project will showcase the importance of these ecosystems for human mental and physical health while also providing a novel AI-based environmental surveillance system to monitor and protect these places.