Autonomous driving for cars is constantly being developed to market maturity. AI-based processes are the key to success here – starting with a reliable perception of the environment and prediction of behaviour through to controlled decision-making for autonomous vehicle behaviour. Corresponding developments are also increasingly being observed in the maritime sector. The CAU is involved in a test vehicle for autonomous shipping (the MS Wavelab) and a test area in the Kiel Fjord. The aim of the work is to establish an autonomous ferry service in the fjord in the medium term. The fundamentals of autonomous ship behaviour in busy waterways are currently being researched, e.g. in the context of research projects such as CAPTN FördeAreal, CAPTN Förde5G and CAPTN.