We started our trip to Zlatibor from Belgrade and on the way there, we stopped in a crazy cave called Petnicka Pecina near Valjevo. The cave stands above a small river. The walls of the cave have faces engraved in the stone. As you enter the cave there are stairs that take you up inside the cave. It was very dark, but we were brave enough and went up – and we discovered an exit to the forest. In the forest there is a curvy trail that leads you back to the entrance of the cave.
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