Only place in the world where you can swim between the Eurasian and North American tectonic plates!
It takes 50 years for glacial water to filter down through cracks and lava tubes to get to this point. The water is so pure that you can drink it while swimming! And I did! Very good.
The water was 32 degrees (brrr) and so clear that it felt almost like flying.
Such a great experience. (I'm back from Iceland but probably won't be done posting pictures from this trip yet 😬)