We have used our ship simulation centre to develop a ship navigation simulation of the Port of Dover that has been used in a series of navigation simulation workshops to inform and support the design of the Ports’ 30 year master plan developments. HR Wallingford’s ship simulation centre houses two real-time, bridge controlled ship navigation simulators, each with state of the art visuals which are designed to be used in port design and ship operations applications. It provides an established and flexible port design, assessment and training facility. The ship simulation centre was used to carry out a navigation simulation study to investigate the design and layout implications of manoeuvring ferries of up to 225 m in length within Dover Harbour. These ferries are the largest ferries that can be accommodated at the berths without major reconstruction.