Posidonia Seagrass

The Freus Channel hosts the globally significant Ibiza-Formentera Posidonia meadow, recognised by UNESCO as one of the largest and most pristine examples of this ancient Mediterranean habitat. These meadows are estimated to be up to 100,000 years old in places — some of the oldest living organisms on Earth. Drifting over them during a Freus drift dive provides an unparalleled perspective on a habitat that once covered most of the Mediterranean's shallow seafloor.