Gljufrabui, also known as Canyon Dweller, is a hidden gem of a waterfall in South Iceland, tucked away behind a cliff near the popular Seljalandsfoss. This 40-meter beauty is a photographer's dream, with its mossy walls, black lava, and mist creating a fairytale-like setting. To reach it, you'll have to wade through a stream and maybe get a little wet, but the stunning sight is totally worth it. Plus, it's just a short walk from Seljalandsfoss, so you can easily tick off two amazing waterfalls in one trip!