CLARION gathers a strong multidisciplinary team of 21 partners with complementary research, technical and business profiles, including four ports with inland waterway connections, the top-3 in Europe, in terms of container throughput, namely Rotterdam, Antwerp/Brugge and Hamburg in the North Sea and Constantza, the largest European port in the Black Sea. CLARION ports handle 35.5% of the total container traffic in European ports as per EUROSTAT published 2021 data and provide access to the major inland waterways of the Rhine-Main-Danube axis, Scheldt and Elbe, ensuring significant impact of the application of results on the European maritime ports industry. 10 pilot demonstrations focused on making port infrastructure and hinterland transport resilient and sustainable. CLARION pilot demonstrations will focus on going beyond the SotA to test and deploy smart and sustainable quay walls, monitoring and management system for the corrosion of port infrastructure with an automated floating mobile measuring system, shore tension applicability for RORO and CONRO terminals during storm conditions, flood impact control DT, dredged sediment reuse in port infrastructure, NBS applicability in maritime ports, DT to support the resilience of connected inland waterways infrastructure, a DT for extreme weather forecasts, federated learning using aerial drones/satellite data/in-situ sensors for cadastral measurements and response to extreme weather, and an EMS for extreme weather events. Though each pilot demonstration will be carried out in one of the CLARION ports, achievements will be shared among them and beneficial results will be adopted in the short-term. International stakeholder communities will be engaged to create an Open Innovation Ecosystem that will promote collaboration and sharing of experiences supported by an AB consisting of experts in climate resilience in ports to ensure that transferability of CLARION’s results will not be limited among CLARION ports.