In his few years of angling and rock pooling, Archie's made good friends with fish, crabs, limpets and anemones. And he's finding new mates all the time.

With her waterproof map on her wrist, Heather doesn’t have to splash out to go on safari. She gets exclusive access to Kimmeridge Bay’s secret world of ever-changing marine wildlife.

Ben keeps a diary of all the wildlife that he spots. He challenges himself to see new species: if he finds something that he doesn’t recognise, he takes a photograph so that he can look it up.