In and around Baccaiano, in the Valley of the river Virge, lies the “Acqua Bolle source”: the term source is improper because, actually, it is a gaseous mofeta escaping in a small ditch, but the impression is that of boiling water. The water temperature is the same as the environmental one, that is cold in winter and tepid in summer. The phenomenon extends to nearby; After a rain, it is indeed possible to feel the soil bubbling, there are many small gaseous emissions. The water obviously, is not potable: it is very crisp and slightly ferruginous.
Trekking route for visiting Spring Water Bubbles begins from the center of Baccaiano, more or less the time needed to fulfill the journey is around 20 minutes