It's ever present on our shorelines, but what actually is seaweed? And is it any good to eat?
Dr Pia Winberg, Honorary fellow at the university of Wollangong and CEO of seaweed company Venus Shell Systems joins us to talk about where it comes from, how to grow it and how to eat it.
Rhodoliths on the seabed in the Marlborough Sound Photo: Rob Davidson (supplied)
