In Montenegro, hiking trails are not only marked with colors (always red and white, but I am not sure if that means that all the trails are connected). In addition, wherever the path forks, cats are positioned whose job is to ensure that you don’t get lost.
If you take the wrong path, the cat will protest loudly. If the cat realizes that you are new to the area, it will accompany you for part of the way.
Each cat works in a designated area. For example, almost every time I climb to the fortress above Kotor, I meet this cat. By now, it already recognizes me and greets me happily, always walking the same stretch of the way next to me. But never all the way to the top, nor all the way into town on the way back. It has its own territory, for which it feels responsible.