The FOF includes all the French marine facilities that belong to the four founding institutes. The FOF includes: • six regional or global research vessels (R/Vs Marion Dufresne, Pourquoi pas?, L’Atalante, Thalassa, Antea and Alis) that can host oceanographic cruises in all the oceans of the globe. From 30 to 120 m long, they can carry out bathymetric surveys of the deep sea, deploy deep underwater systems for sampling, set out moorings, sample the water column, take underway measurements (meteorology, current readings, etc.) • Underwater vehicles, unique in Europe, such as the autonomous vehicle Nautile or the remotely operated vehicle Victor 6000 that can dive down to 6000 m with towed sonar, multi-beam seismic instruments and sampling tools;• Five coastal ships (R/Vs L’Europe, Thalia, Côtes de la Manche, Tethys II and Haliotis) used in the English Channel, the Atlantic Ocean and the Mediterranean Sea for many, diverse scientific cruises along the coast, in the open sea or anywhere between. • Seven small boats that can handle day outings or trips of up to 3 days for the newest of the fleet and distributed across the mainland French seaboard. The fleet is used mainly to carry out scientific research and observation in all the domains of oceanography: marine geosciences, physical and biological oceanography, biogeochemistry, and ocean chemistry, paleoclimatology, marine biodiversity, etc.It also fullfils the needs for monitoring, assessment, or public service missions for government agencies addressing hydrography, coastal environment, fishery resources, EEZ delimitation, seismic, volcanic and submarine landslide hazards.The FOF is also solicited for research-industry collaborations with the socio-economic sector, particularly for mineral and energy resources and participates in research training in relation with universities.