Watch The Big Sea (2025) : Full Movie Online Free Surfing is killing it. This $10 billion global industry – built on the dream of carefree spirits, crystal clear waters and an even clearer connection to the natural world – has never been more popular. Surfing has set out its stall as the champion of environmental issues. But surfing has a dirty secret… and people are dying. A ground-breaking and compelling documentary shot over three years in California, Louisiana, UK, Ireland, France, Spain and Australia.