The project aims to purchase scientific equipment to sustain and modernise high-frequency coastal oceanographic observation. It will incorporate COAST-HF SNO for measurements of hydrological parameters (temperature, salinity, fluorescence, turbidity) and complemented by atmospheric measurements. Integrated and multi-parameter observation will make it possible to observe not only the surface but also the entire water column, through the deployment of a benthic observation station, which is crucial for a global understanding of the ecosystem.