Bulgaria: Bats and Darkness in Caves Around Belogradchik
So, here we go. The two of us are the only humans in this huge and dark place, but not the only living creatures. A few hundred meters into the cave, the first small bats fly by, in some cases rather close. Their wings, which also seem to serve as coats, look like they are made of satin. They are as fascinating as they are scary.