Through the power of cinema and environmental awareness, the 18th Psarokokalo International Short Film Festival joins forces with the Greek Islands Seagrass Alliance (GISA) to "make the invisible visible." Our common goal is to reshape public perception regarding marine ecosystems—such as beachcast Posidonia leaves—and highlight their vital role as a natural shield against climate change. By illuminating the big screen, we inspire film enthusiasts, citizens, and stakeholders alike, turning an artistic experience into collective action to protect the future of the Greek coastlines and our seas.