Residents near a lake were stunned as the water "looked like weak Ribena" after a non-toxic dye had been added to help aid the development of wildlife.
Ecologists put the dye at Eirias Park in Colwyn Bay, north Wales, to increase the water’s opacity, and so prevent sunlight reaching the bottom of the shallow lake. Deprived of light, weed growth is stunted.
But when a dad shared images of the lake, and its purple water, on social media, people mistook the fluid for Ribena and other drinks.
