Thingvellir, Iceland

As I slide out of the shallow basin and drag myself past the top edge of the drop-off, I find myself hovering in an empty void. Between me and the rock plateau far beneath me, I seem to have nothing but a clear space. It is almost disturbing. Aside from the feeling of drag when moving, it is almost impossible to detect the water we are in. Only the rising stream of bubbles from the air we exhale, gives any indication that we are indeed well submerged in some of the clearest water on the planet, if not the clearest. Visibility just seems endless, almost like air, making long distances difficult to judge.