Gljufrabui, also known as Canyon Dweller, is a hidden gem of a waterfall located near the popular Seljalandsfoss in South Iceland. Tucked behind a cliff, this 40-meter-tall beauty can only be reached by wading through a stream and entering a narrow valley. Once inside, you'll be greeted by a stunning sight of water cascading down before a massive boulder, creating a magical atmosphere with mossy walls and rainbows on sunny days. It's a bit of a challenge to get there, but totally worth it for those seeking a peaceful and awe-inspiring nature experience.