This is a freshwater wetland that provides a habitat for plants and animals alike.

Even though such basins were initially man-made (primarily in order to prepare a livestock watering hole), they later developed into an important natural element.

In the area of Slovenian Istria, these basins often have a source of water that never dries up. Nevertheless, another of their characteristics is the fluctuation of the water level, temperature and nutrient quantities. For this reason, these basins are often populated by various species of animals and plants, while other animals only use them to drink water.

Without such basins, it would be impossible for frogs, dragonflies and other animals to survive in the area.

The “puč” in Boršt is one of the largest basins of this type in Istria. Reconstructed and equipped with information signboards about the life in and around the “puč” in various periods, it provides an excellent stop for a natural field trip.

In our municipality, we have a lot of “puč” that have been classified as natural assets of local importance (in Čentur, Črnotiče, Dol pri Hrastovljah, Glem, Krkavče, Poletiči, Pomjan, Pregara, Poletiči, Puče, Sirči, Socerb, Sokoliči, Srgaši, Tinjan, Zazid and in the vicinity of Kastelc).