ARCADIA is a project funded by HORIZON Europe Innovation Actions in response to the call “Testing and demonstrating transformative solutions on climate resilience, mainstreaming nature based solutions in the systemic transformation”. The main goal of ARCADIA project is to mobilise 8 European regions and communities – from Italy, Croatia, Austria, Denmark, Sweden, Bulgaria, Romania and Slovenia – to accelerate nature-based solutions (NBS) adoption and assist them in accessing up-to-date, evidence-based actionable knowledge, guidance, knowledge-intense tools and services, mutual learning and networking opportunities.