Bollitore del Casetto di Campo in Fondo

Bollitore del Casetto di Campo in Fondo is a natural volcanic boiling pool (bollitore) in the geothermal landscape of Tuscany or Lazio, Italy, where sulphurous water boils and bubbles from the volcanic basement in a dramatic display of natural geothermal energy. Italy's volcanic regions — particularly the Maremma, the Viterbo area, and the Phlegraean Fields — contain numerous such bollitori where water reaches boiling point at the earth's surface, creating vivid geothermal spectacles that have fascinated travellers since antiquity. The surrounding Tuscan or Lazio volcanic landscape of grass-covered calderas, steaming ground, and travertine-encrusted pools provides a dramatically geological backdrop for these natural boiling vents.