Adopted in 2018 by the Corsican Basin Committee, the Climate Change Adaptation Basin Plan for Water defines the strategy to reduce the vulnerability of territories. With an island-wide action plan, it includes a set of 57 concrete measures aimed at providing water responses to climate change. This plan, an integral part of the general policy of adaptation to climate change led by the Community of Corsica, must allow to succeed the bet of an adapted management of water. It requires governance that places the fight for water among the major political and societal concerns of Corsica today and tomorrow.