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A historic rubble-stone facade with a round tower, arched windows and the word Terme on the pediment, a tall cypress in front, wooded hillside behind under a blue sky

Monsummano Terme, Tuscany · Italy

Grotta Giusti

  • Thermal grotto
  • Historic villa
  • Floating
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Our Assessment

Why we recommend Grotta Giusti.

A 19th century villa above a natural thermal grotto with an underground lake.

The steam grotto with its zones Paradiso, Purgatorio and Inferno is unique in Europe; above it sits the Giusti family villa with park and thermal pool. We know the resort from our own journey through Tuscany.

Ulrike & Christian Göbel Deluxe Travel

Fit & Season

When this property truly shines.

Best season
Year round; the grotto holds a constant 34 degrees, the park is at its best in spring and autumn.
Ideal for
Rest seekers who want to experience a true natural thermal bath, including floating in the underground lake.
What stays with you
Float through the warm underground lake of the grotto in a wetsuit, accompanied by a guide.
Climate on siteDaytime 11 to 32 °C, 1181 mm of rain a year

Top to bottom: daily high, night temperature, rainfall in millimetres.

  1. January11°2°98 mm
  2. February13°4°98 mm
  3. March16°5°99 mm
  4. April19°8°78 mm
  5. May23°12°92 mm
  6. June29°17°63 mm
  7. July32°19°31 mm
  8. August32°20°54 mm
  9. September27°16°125 mm
  10. October21°12°139 mm
  11. November15°7°173 mm
  12. December12°4°131 mm

Averaged over 2016 to 2025. This is not a forecast. Data: ERA5 (Copernicus) via Open-Meteo Opens in a new tab., CC BY 4.0.

  • The natural steam grotto is divided into the zones Paradiso, Purgatorio and Inferno.
  • The underground thermal lake can be experienced on a guided float.
  • The 19th century villa of the Giusti family of poets forms the heart of the estate.
  • Park, outdoor pool and spa lie minutes from Montecatini Terme.
Two people in white bathrobes stand on a railed walkway in a cave beneath a wide, knobbly encrusted dripstone ceiling

Climate & best time to travel

When it rewards you most.

Best time to travel April to June and September to October for mild, clear days.

Tuscany carries the whole year: mild in spring and autumn, thermally warmed in winter.

  • April to June Spring with green hills, 18 to 26 degrees, ideal for thermal baths and excursions.
  • July to August High summer, often above 30 degrees; early mornings and evenings in the outdoor pools are the finest hours.
  • September to October Harvest season with soft light, 18 to 27 degrees; wine and truffle arrive at the table.
  • November to March Cool, quiet months; the thermal springs of 34 to 42 degrees now show their full effect.

Gallery

Images for orientation.

A woman in a white swimsuit lies stretched out on the clear water of a cave, a man standing behind her and supporting her, with rugged dripstone walls above
Lying weightless on the clear water, you look up at the dripstone walls of the grotto.
Two people in white bathrobes stand on a railed walkway in a cave beneath a wide, knobbly encrusted dripstone ceiling
A walkway leads deeper into the grotto beneath the knobbly dripstone ceiling.
An oval bar counter with a wooden front and a shelf of bottles above it, surrounded by bar stools, armchairs and sofas, with frescoes and a green glass chandelier on the ceiling and a tapestry with cherubs on the right
A green glass chandelier hangs above the oval bar beneath the painted vaulted ceiling.
Loungers with rolled towels stand in a covered room with glass walls, beyond them a large outdoor pool edged with loungers and parasols, cypresses and a blue sky
Behind the glass wall the towels lie rolled and ready, while outside the pool shines beneath the cypresses.

Local Experiences

What shapes the stay.

  • Montecatini Terme
  • Lucca
  • Pistoia
  • Vinci

Location

Monsummano Terme, Tuscany · Italy

Bensheim
Grotta Giusti

Inquiry

Inquire about Grotta Giusti with us.

We review travel dates, room logic, arrival, and alternatives before shaping a specific proposal.

+49 6251 1797-0 WhatsApp Opens in a new tab. Send inquiry

Mon-Fri, 9 am-1 pm and 2.30-6 pm · Response within one business day

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