Iceland is truly waterfall country! There's a new one around every corner and they are massive! The spray coming off the falls is so powerful it completely soaks you, but so worth the up close views. Seljalandsfoss is neat because you can walk behind the falls. Gljufurarfoss required wading in the stream to reach the cave where the falls cascade into, but it was so worth it. And the most spectacular has to be Skogafoss (also a Mitty moment). It's enormous!