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Could seaweed once again become a major part of the economy of the Scottish Highlands? The trade, which last blossomed 200 years ago, looks set for revival as new uses are found for the slippery plant. Richard Baynes visits crofting couple and seaweed farmers Kyla Orr and Alex Glasgow, and their business partner Martin Welsh, as they deal with their first proper kelp harvest. He takes a boat trip out to their seaweed farm, and goes into the lab with marine biologist Kyla to learn the secrets of seeding seaweed and the technology they are inventing to do it with.

Produced and presented by Richard Baynes