Krcnik Troughs are located above Kotline under the village Kozbano. The brook Kozbanjcek carved into the limestone very picturesque and interesting beds, which are long about 40 meters, deep to 6 meters and wide from 0,5 to 6 meters.
Under the first bed we can see the scenic natural bridge Krcnik, which is smooth and well rouned, because it was created by grinding water. The arch of the natural bridge is about 1 meter wide and 5 meters long. In Slovenia these bridges are only few and they are mostly more edged, because they were made with mouldering of rocks. Krcnik Troughs then continue with a narrow channel and in the end they open to the gorge with steep walls, which runs out to the narrow valley. The natural bridge Krcnik belongs to the most beautiful bridges in Slovenia.
The nearest Kotline are three pools, which were made by the stream of brook Kozbanjcek overcoming the 10 metres high rocky walls. Here is in the summer time popular natural baths for young people. Krcnik Troughs with the bridge and Kotline are from the year 1985 protected as a natural monument.