Geography Cat’s official stunt double Ike was fascinated to see the original Geysir, from which all other erupting hot springs get their name. Geysir itself erupts less frequently now, but its neighbour Strokkur erupts beautifully every 8 minutes or so.
Geysers are formed where surface water can percolate through permeable rock in volcanically active regions. There are very few places where active geysers can be seen, most are in just five countries: USA, Russia, Chile, New Zealand and Iceland. Their activity fluctuates because of earthquakes opening and closing the fissures that surround them.