very good! Looks like it was just about to burst, how long did you stand there to get it at that moment ?
I think it was about 5-6 minutes. The time between bursts is varying from 5-10 min.
This bubble is about 2 meters wide and rises up to maybe 60 cm (2ft) before it bursts.
The blue tones of the geyser bubble are quite beautiful against the dark and steamy natural landscape. The sky reflections in the waterpools adds wonderful textures to this shot as well. An interesting take on the challenge interpretation.