The first waterfall we visited today was Seljalandsfoss, also known as the "Water Curtain Cavern." As you walk along the trail into the cavernous entrance, you'll be greeted by a unique view, one of the few uniquely scenic spots among Iceland's many waterfalls. Seljalandsfoss can be reached via a pedestrian path that leads you slowly up the waterfall and around behind it, making it one of its most beautiful features. The path isn't perfectly smooth, with some twists and turns, and it's quite slippery, but it's a popular trek.

Seljalandsfoss, about 60 meters high, isn't as prolific or spectacular as the nearby Skógafoss, but from a distance it possesses a uniquely refined and elegant beauty. If we were to follow the curve, go around to the right, and pass behind the waterfall, the view from the cavernous entrance would be breathtaking. Waterproof clothing and shoes are essential for traversing the waterfall, and we certainly did, prepared for a quick rinse.