The word geyser comes from the Icelandic word geysir, which means to gush, and is the name of one of the first discovered and recorded geysers.
Unfortunately, Geysir doesn’t erupt much any more, but Strokkur, which is nearby, still erupts frequently. I was there for only about 25 minutes, and got to see it happen four times!
It was impressive, to say the least.
There are pools and puddles of near-boiling water all around the area. This geothermal heat is a huge energy source throughout Iceland. It smells a bit like sulfur, but it warms homes, provides hot water for showers, pools, and hot tubs, and melts snow when its pumped under roads. Pretty cool, er, warm.