Weekend full of fun activities for the family. Includes unique opportunity to see the 200-year-old-plus Nereis Britannica by Cornish botanist John Stackhouse

Seaweed may have a reputation for being slimy stuff that gets around our feet when in the sea, but it is fascinating, often beautiful, and plays a crucial role in marine ecosystems, supporting wildlife and biodiversity.

Now, Natural England, working in partnership with the Cornwall Wildlife Trust, the Mounts Bay Marine Group (MBMG) and the Linnean Society of London, is hosting a two-day Cornish Seaweed Festival in Marazion on Saturday and Sunday, 11 and 12 May.