Background: Nature-based adult day services (ADSs) in urban areas are relatively new services in the Netherlands. Since knowledge about these services is still scarce, this study aimed to elucidate their value for people with dementia and their family carers in terms of health and wellbeing. Methods: We interviewed 39 people with dementia attending nature-based ADSs in urban areas and their family carers, and 17 providers of these services.