Wales; a land of myth and legend, and stunning natural beauty. But don’t let those crystalline lakes deceive you, foul things lurk beneath the waters. Llyn Tegid in Bala is said to be home to Teggie. Llyn Glasslyn is home to Afanc. Llyn-y-Forwyn is home to the beautiful but deadly, Nelferch. What legendary creatures are these? Find out in Water Monsters of Wales.