Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Vasche di fanghi termali Bruciarello are natural thermal mud pools near Viterbo in the volcanic spa zone of northern Lazio, Italy, where sulphurous water at around 37-60°C combines with volcanic clay sediments to create therapeutic mud baths of remarkable quality in a raw, undeveloped volcanic landscape. The Viterbo area's remarkable concentration of free natural thermal mud pools — where bathers can immerse themselves in hot sulphurous water and mineral-rich volcanic mud at no charge — represents one of Italy's most extraordinary and democratic thermal experiences. The surrounding Cimini and Vulsini volcanic landscape, with its crater lakes, Etruscan tombs, and medieval hill towns, creates one of central Italy's most atmospherically powerful settings.