Our green planet has powers beyond those you can easily see. In this short documentary, we travel underwater with environmental scientist Gwilym Pugh as he explores Cornwall's seagrass beds - a hidden gem on our coastlines that is one of the most efficient carbon sinks on the planet. Alongside Charlie Young (Marine Biologist & Free-diver) and Project Seagrass we learn what is required to protect and restore this invisible hero that we are currently losing swathes of due to development, water pollution and anchoring.
