Why is the sea around Ibiza so impossibly clear? Meet Posidonia, a vast underwater meadow and one of the oldest living organisms on the planet.
The crystalline turquoise water Ibiza is famous for? You can thank a plant for that. Posidonia oceanica is a seagrass that carpets the seabed around the Balearic Islands, filtering the water and oxygenating it.
One single Posidonia meadow between Ibiza and Formentera is estimated to be over 100,000 years old, making it one of the oldest living organisms on Earth.
It's also incredibly fragile. Anchor damage from boats destroys decades of growth in seconds. When you visit, choose operators that moor responsibly, the sea you came for depends on it.
