Alan passed his road test

Flowstone in Howe Caverns

Tripe rock

So we celebrated. Guess how.....

Update....Here is a clue ... this celebration included a fairly large amount of exercise of a sort to which I am not so very accustomed.

Update #2..Guess I will have to give the answer away. (I was sure someone would get it, either a local person or perhaps a science teacher from the far south. Steve figured out how to get the answer, which is located at this spot )
Now you can see the photos from which the close-ups were taken.