The Scaling Urban Nature-Based Solutions for Climate Adaptation in Sub-Saharan Africa (Suncasa), a new three-year project, will undertake watershed restoration and adaptation actions in Dire Dawa, Ethiopia; Kigali, Rwanda; and Johannesburg, South Africa. It is expected to reduce climate-fuelled flood risks and enhance the resilience of people in these three sub-Saharan African cities, while promoting gender equality and social inclusion and strengthening biodiversity protection.