Falmouth Harbour Commissioners operates PISCES II oil spill modelling software (commercially distributed by Transas Marine Ltd). The model requires currents and/or wind to be inputted. These variables are critical to the model outputs and therefore accuracy is of great importance. However, the results of these predictions for the Fal estuary are not accurate and, therefore, the implementation of a high-resolution hydrodynamic model is needed in this study area for a more precise oil spill modelling. For this reason, in the frame of SPRES, the hydrodynamic model SELFE3D is being implemented. The preliminary configuration of the high-resolution model is 2D, and test cases are being tried, imposing the sea surface elevation of MyOcean IBI model output in the open boundary. In the following months a 3D configuration will be developed. Local weather forecast model data was requested to the UK’s National Weather Service, Met Office, with the aim to use them as the atmospheric forcing to feed SELFE3D. PISCES will not be improved in its process representation, but enhancements on the input/output structure will be implemented to take advantage of the higher resolution currents field to be obtained from SELFE3D. PISCES, now includes the option to export oil spill trajectories to Google earth format. It is envisaged that, for Falmouth Harbour, two Operational Systems are going to be setup: (1) SELFE3D hydrodynamic model-PISCES oil spill model; (2) SELFE3D hydrodynamic model-VOILS oil spill model.