Rich in active gases or metals — a strong mineral character.
Buoyancy
Standard buoyancy
LowHigh
Soft water — natural, classic buoyancy.
SoufreSulfuresSulfates
La Balena Bianca — 'The White Whale' — is a natural free thermal pool in Italy, likely in the volcanic spa landscape of the Viterbo area or Maremma region of Lazio and Tuscany, where sulphurous spring water at around 37-40°C fills a large natural pool or travertine basin accessible to visitors at no charge. The name, evocative of a great cetacean shape in the white mineral deposits, reflects the Italian tradition of giving imaginative names to the natural free thermal pools (terme libere) that dot the Tuscan and Lazio countryside. These terme libere — freely accessible natural sulphurous pools in dramatic volcanic landscapes — represent one of Italy's most democratic and beloved outdoor wellness traditions.
Insider tip — La Balena Bianca ('The White Whale') is a boutique thermal retreat near Saturnia in the Maremma hills of southern Tuscany, fed by the same sulfurous aquifer famous for the Cascate del Mulino natural falls just kilometres away. The waters emerge at around 37°C carrying a distinct rotten-egg aroma that locals have associated with restorative properties for centuries. The Etruscan plateau landscape of cork oaks and volcanic tufa cliffs frames the property dramatically. Book the private pool at sunset for a silhouette of Etruscan towers against the Tyrrhenian sky.