This video, produced by the project POSBEMED, highlights the value of Posidonia oceanica for the Mediterranean. The POSBEMED project in one of the 9 thematic initiatives under the umbrella of the EU Interreg Med PANACeA project on Biodiversity Protection. POSBEMED is led by the Entente Interdépartementale de Démoustication Méditerranée (EID-Med, Montpellier) in France and involves partners from three more Mediterranean countries: the International Union for Conservation of Nature - Centre for Mediterranean Cooperation (IUCN, Malaga, Spain), the International Marine Centre Foundation (IMC, Sardinia, Italy), ECO-logica srl (Bari, Italy) and the Hellenic Centre for Marine Research (HCMR, Anavissos, Greece). Other associated partners are the Hellenic Society for the Protection of Nature (Greece), Ministry of Agriculture, Rural Development and Environment (Cyprus), Larnaka Municipality (Cyprus), Regional Government of the Balearic Islands (Spain), French Agency for Biodiversity (France), and the Municipality of Giovinazzo (Italy). POSBEMED is an Interreg-Med project co-financed by the European Regional Development Fund.