Caverns

We went on a field trip recently and I wanted to share some pictures.  The first picture shows (sort of) helictites - they change direction once they come down from the top and go all sorts of wonky directions.  There's a clearer picture here.  The picture below that shows formations that only form under water.  They didn't know there was a 5,000 gallon body of water there when they blasted the wall.