A talk on the underwater mysteries of the island of Bali is taking place at Royston Town Hall on Tuesday.

Underwater photographer Ken Sullivan is giving the illustrated Royston Wildlife Group talk at 7.30pm in the lower hall.

Don Shewan of RWG said: “Bali is part of the Coral Triangle, the area with the highest biodiversity of marine species.

“Ken will introduce us to the geography of Bali above water then ‘dive in’ to show the extraordinary variety of underwater life that exists, from large Sunfish to some of the tiniest crustaceans that live in the surrounding sea.”

The meeting costs £2.50 but under-18s get in free.