Alone. Surrounded by the space of water. The land is what it is and nothing more. Their resources are what they are and nothing more. Along with the desert zones, they present some of the greatest technical, economic, geo-graphical and social challenges to water management. If the blue blood is life on the continent, it is even more so on the lands surrounded by ocean, with few or no natural sources, dependent on storms and always too small for the people who want them, with enormous tourist populations and extreme variations in water demand between the high and low seasons. We’re not just talking about the supply of potable water or for other uses, but also the 180 liters of wastewater per tourist per day that end up in the Mediterranean and are responsible for 7% of its pollution, according to the European Environment Agency. And we’re not just talking about mak-ing the tourist engine more sustainable, but of, at the same time, preserving the purity of often unique ecosystems due to the isolation. Specialist companies like ACCIONA must optimize their management and technological capacity in interventions adapted to that world of par-ticular needs for each island or archipelago, like the recently adopted goal