Gljúfrabúi, 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 bit of a secret spot, perfect for nature lovers and photographers looking for a peaceful escape. To reach it, you'll have to wade through a stream and maybe get a little wet, but the reward is totally worth it—a magical scene straight out of a fantasy story with mossy walls, misty spray, and rainbows on sunny days.