Biofluorescence: Unseen world of the Celtic rainforest revealed by UV

An eerie glow has been emanating from Wales' forests and rockpools for the country's annual dark skies week.

David Atthowe, a nature guide from Norwich, was invited to shine his ultraviolet (UV) torches on some of the best nature spots in Pembrokeshire and Monmouthshire.

His photos of temperate rain forest in Wales reveal shapes, structures and colours that rival a coral reef.