One of my favorite things to do that I don't do nearly often enough is visit caves and caverns. Here is a virtual tour of Aillwee Cave in Ireland -
Rhinolophus hipposideros, the lesser horseshoe bat, one of the smallest bats in the world. Can you see him there in the center of the photo? (Click to enlarge.)
The biologist in me hates that they use artificial light in these caves because it causes bacteria, fungus, and plant life to grow in places they would not occur under natural conditions. (See that greenish spot near the top of the photo?) The photographer in me, on the other hand, is excited to take these excellent shots without having to use flash.
This was an Australian couple that we actually ran into twice. We stood next to them at the St. Patrick's parade in Dublin and then saw them two days later on the other side of the country at Aillwee Cave! It really is a small world!!!
The Burren Birds of Prey Centre is right next to Aillwee Cave. We didn't go in, but here are some pretties that were out in the parking lot. (These are not birds of prey.)