I have been taking my kids to visit colleges this fall. After visiting Kutztown University we went to Crystal Cave also in Kutztown. We've been there before, but not for years. The kids wanted to go, and I wanted pics of the cavern for painting reference. This was a great source of info and ideas on painting my DF Cavern Pieces.
Here are pics of what we saw. Keep in mind taking photos in poorly lit areas is tricky at best. They do have internal lights, but really only to highlight features. Also some of the rooms were huge so it "ate" my flash. All that said, I did get some good shots.
A couple of things struck me as we toured the cave and listened to the guide talk. The first thing is Humans have been damaging this cave since it was discovered in 1871. Lots of broken off stalagmites and stalactites taken as souvenirs . Just touching the stone formations can damage them with the oils from our skin. For stone structures, they can be quite fragile. The other thing, is the huge amount of time it takes for the various formations to "grow". Stalactites in the cave that have been growing for about 100 years are one to two inches long.
The amount of colors, textures and shapes in one cave was astounding.
Anyway, very cool and very informative.
If you get a chance, I do recommend visiting Crystal Cave in Kutztown PA. It was very cool.