Photo by Andrea Piacquadio on Pexels
🇮🇹 Italy · Lazio
♨ Temperature
65°C
⛰ Altitude
—
⚗ pH
—
💧 TDS
—
🌊 Flow rate
—
📅 Established
Roman period (known as Aquae Passeris)
✓ Verified on 2026-07-28
Piscine Termali del Bagnaccio is an open-air thermal park about 8 km north of Viterbo, on the route of the medieval Via Francigena pilgrimage road. The park has five pools fed by sulphate-bicarbonate, alkaline, sulphurous springs known in Roman times as 'Aquae Passeris'; the water emerges at the source at a hyperthermal 65-66°C, with cooler pools ranging 23-29°C. The park reopened to the public on 2 August 2025 after a closure of over three years, following a hygiene inspection.
Known in Roman times as 'Aquae Passeris,' the springs lie along the medieval Via Francigena pilgrimage route to Rome and have offered relief to travelers for centuries. The park closed for over three years before reopening to the public on 2 August 2025 following a positive hygiene and health inspection.
Pilgrims walking the Via Francigena today can present valid pilgrim credentials for discounted entry, a modern continuation of the site's historic role as a stopping point for those journeying toward Rome.
Websitewww.bagnaccio.it
AddressStrada Garinei, 01100 Viterbo (VT), Lazio, Italy (approx. 8 km north of Viterbo)