Wow this is a great thread, I love to see what personality comes out in peoples pics. I enjoy seeing the far away places and the things some people see and is "normal" too them that I rarely if ever have seen up close. Some of the photos here definitely rival any published work I have seen as well ie National Geographic etc.
Here is my 2 cents.
This was taken in Fitton cave in the Buffalo national forest, in Arkansas. There is roughly 11 miles of pitch black cave.
Another flashlight experience. We hunt these long pincherd crayfish at night. Some are as long as 9" from tip to tail (me on the left)