The pressure at the bottom of the geyser increases, the temperature too.
At a certain time the pressure will be such as water will be expelled.
There will be thus a water column being able to reach the 50 m height every approximately 10 minutes.
Water falls down then (attention it is very hot) and a new cycle will be able to begin
The geological activity is also visible by the small stretches of water hot whose bottom has a beautiful color.
The stop with our bus with lasted approximately two hours. It is now the return for Selfoss.
