We went to the glow worm cave and on the way back home we found the museum. It was a small but informative museum about the Waitomo caves and the historical and geographical facts about the caves. It was well organized and informative specially after our visit of glow worm cave. Also they have a part in this museum that explains biology of glow worm and you can see some short documentaries about them. I definitely recommend it if you are into geology of the caves and their related history.