Along with the fumaroles (steam vents) everywhere, there were also the bubbling mudpots.
The boys were not able to fully grasp the concept of 'boiling mud' until they laid eyes on the globular blobs of mud, bubbling up and down. You know, there is something quite relaxing about watching thick, gooey, brown stuff going blobble blobble blobble! Fascinating! Truly. I know you may think that I've popped a neuron, thinking that watching bubbling mud is interesting…but I just loved watching the bubbles (no two the same!) growing until they popped. We set the camera on to take several shots every second or so, and we got a cool set of photos of mud in various stages of 'pop'- prepop, midpop, and postpop!
Whilst we were in the cave, we heard the ominous crack of thunder. Pretty amazing sound to hear at the bottom of a cave. It was a 'moving' experience! Just as well, since we were the very last people left in the park. It was still a good way back to the jetty and the rain clouds looked very ominous. We prayed that the rain would hold off and that we'd find our way back to the jetty without getting lost! Our prayers were answered and the first large droplet of rain hit us as we were getting into our car in the carpark!