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Beaches · Tuscany, Siena

Bagno Vignoni and Posta Marcucci Thermal Pools

  • VibeHistoric spa village, quiet and scenic
  • DistanceAbout 50 km southeast of Siena (about 1 hour by car)
  • Rating★ 4.4
  • Best seasonOctober-April for outdoor thermal bathing
  • Difficultyeasy
  • TransportCar via SS2 Cassia to San Quirico d'Orcia, then a short drive; bus services from Siena to San Quirico (check at-bus.it).

Bagno Vignoni centres on a rectangular 16th century pool of thermal water in place of a main square, with steam rising on cool mornings. The Piazza delle Sorgenti pool is for viewing only. Day access to thermal pools is available at Posta Marcucci and other spas, with prices reported from about EUR 20 (roughly $23). A signposted path descends through the Parco dei Mulini to old mill channels.

A village built around a steaming thermal pool square, with paid day access to outdoor pools at Posta Marcucci and a free walk through the Parco dei Mulini.

Bagno Vignoni centres on a rectangular 16th century pool of thermal water in place of a main square, with steam rising on cool mornings. The Piazza delle Sorgenti pool is for viewing only. Day access to thermal pools is available at Posta Marcucci and other spas, with prices reported from about EUR 20 (roughly $23). A signposted path descends through the Parco dei Mulini to old mill channels.

Practical information for Bagno Vignoni and Posta Marcucci Thermal Pools · Last updated September 2026
Distance About 50 km southeast of Siena (about 1 hour by car)
Getting there Car via SS2 Cassia to San Quirico d'Orcia, then a short drive; bus services from Siena to San Quirico (check at-bus.it).
Difficulty easy
Best season October-April for outdoor thermal bathing
Address Piazza delle Sorgenti, 53027 Bagno Vignoni SI, Italy

Amenities

  • Historic thermal pool square (Piazza delle Sorgenti)
  • Parco dei Mulini footpath
  • Posta Marcucci outdoor pools open to day visitors
  • Restaurants and cafes

Good to know

Best for
thermal relaxation, couples, photography
Water
Thermal water is hot year-round. Sources conflict on bathing in the Parco dei Mulini pools: bathing there has been reported as prohibited since a 2010 ordinance with fines, though foot soaking is allowed. Check local signs.
Facilities
Posta Marcucci offers paid pool access (day passes reported from about EUR 20, roughly $23, verify with the hotel).

Location

Piazza delle Sorgenti, 53027 Bagno Vignoni SI, Italy

43.0278, 11.6179 View on map

Highlights

  • Steaming thermal pool square
  • Parco dei Mulini mill channels
  • Paid day access at Posta Marcucci
  • Val d'Orcia scenery

Tips for visiting

  • Do not assume the free pools allow bathing; follow signs and fines apply (EUR 25-500 reported).
  • Confirm the day-pass price and booking with the Posta Marcucci hotel.
  • Visit early or late for photography of the steaming square.
  • Combine with Pienza and San Quirico d'Orcia.

When to visit

Cool mornings and winter

Accessibility

Village square is flat; park paths are uneven.

Frequently asked questions

Can I swim in the main square pool?

No, bathing in the Piazza delle Sorgenti pool is forbidden.

How much is Posta Marcucci?

A day pass is reported from about EUR 20 (roughly $23); verify with the hotel.