Once Upon a Sea is a poetic, interactive XR documentary telling the tragic tale of the legendary Dead Sea – a place of undeniable healing powers and, for many, a place of indescribable magnetism. Through a physical exploration of the sea’s forbidden, moonlike landscapes, to intimate encounters with local characters, the user gets a rare glimpse into one of the world’s most dangerous, soon to be extinct, wonders. Centuries of human intervention and political neglect have turned the Dead Sea into a precarious place. Its water levels have dropped dramatically, leaving behind sinkholes and collapsing beaches. Once Upon a Sea is our call to action.