PHAROS is building a live digital copy of two very different marine environments (the nutrient-rich waters off Gran Canaria and Iceland’s salmon rivers) in a system called a Digital Twin Ocean (DTO). Led by PHAROS partner blueOASIS, this unique multi-layered approach streams real-time data from seabed to cloud using sensors, underwater cameras, acoustic hydrophones and self-learning AI, presenting everything through an easy-to-use dashboard. The goal is simple: to give marine managers, scientists and local communities the power to see, understand and respond to changes in our ocean before problems become irreversible.