Found just off the Ring Road, Seljalandsfoss is a majestic 200-feet waterfall. You can even walk behind it—the closest you can get to experiencing the full force of the waterfall. Surrounded by green hills and volcanic rock, Seljalandsfoss is a popular spot for photography, and during the summer months you can spot its mist from quite a distance away. Gljufrabui Waterfall is a short hike away, a hidden waterfall that you’ll have to wade through a shallow stream to reach. Wear good shoes and a waterproof jacket as the falls can be slippery and wet. For fewer crowds, visit early in the morning or just before sunset. – Tripadvisor