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.
"It is hidden from our human senses, waiting to be discovered," he said.
The 34-year-old is on a one-man mission to shine UV light on what he calls a "magic world" in which plants and animals fluoresce to communicate.
"Wales is so lucky to have so many beautiful sites [for biofluorescence] with its rockpools and temperate rainforest," he said.