Quick FactsOverview
About Bullicame Hot Springs
Bullicame Hot Springs, Italy is a free, open-air natural thermal spring site approximately 2.5 kilometres west of Viterbo in northern Lazio. The spring emerges from a deep natural crater at 58 degrees Celsius, producing sulphur-sulphate-bicarbonate-alkaline-earth water that feeds two open bathing pools at cooler temperatures. Entry is free and the site is open every day of the year, closing at around 17:00 in winter and 18:00 in summer.
The spring has been in continuous use since Etruscan times and was a documented stop along the medieval Via Francigena pilgrimage route from Canterbury to Rome. In the 14th century, Dante Alighieri immortalised the Bullicame in Canto XIV of the Inferno, comparing its steaming red-tinged stream to the rivers of Hell. A stone stele inscribed with those verses from the Divine Comedy stands beside the crater today, making Bullicame one of the few natural hot springs in Italy with direct literary heritage of this depth. The name derives from the Latin bullicare, to bubble.
The site consists of a small park with the main crater, a smaller oval pool that receives direct spring water and is very hot, and a larger elongated pool at a more comfortable bathing temperature. A small botanical garden and pond are adjacent. There are no toilets, no changing rooms, and no on-site attendant.
Location & Access
Getting to Bullicame Hot Springs
Bullicame Hot Springs is located on Strada del Bullicame, approximately 2.5 kilometres west of Viterbo city centre. By car from Viterbo, take the road towards Tuscania, pass the military airfield, then turn left onto Strada del Bullicame. The site is near the junction of Strada Tuscanese and Strada Terme. Small free parking is available near the pools but fills quickly on warm days; arriving early is advisable. The parking is unguarded, so valuables should not be left in vehicles.
By public transport from Viterbo, bus line 2 from the city centre runs to Terme dei Papi and stops within walking distance of Bullicame, approximately 200 metres from the site. The journey from Viterbo Porta Fiorentina train station by bus takes around 15 minutes, or by foot around 35 to 40 minutes along the road. Visitors relying on public transport should check current bus schedules, as frequency is limited and service may not run on Sundays.
Viterbo itself is reached from Rome in approximately 80 to 90 minutes by regional train from Roma Ostiense or Roma Termini, with direct connections to Viterbo Porta Romana. By car from Rome, the A1 motorway towards Florence, exit at Orte, then the Cassia towards Viterbo. The natural hot springs near Viterbo including Bullicame, Bagnaccio, and Piscine Carletti are all within a short drive of one another, and several can be visited on the same day.
Suitability & Accessibility
Who Bullicame Suits
Bullicame Hot Springs suits adults and families seeking a free, informal outdoor thermal experience with significant historical and literary depth. There are no age restrictions, no booking required, and no admission charge. Families, solo visitors, couples, and hikers on the Via Francigena all use the site. The flat terrain and short walk from the car park mean that general fitness is not required to reach the pools, and the site is accessible to most visitors without special preparation.
Wheelchair access is not possible. The natural terrain is uneven, with compacted earth and mineral deposits and no paved paths or managed access infrastructure. Visitors with mobility impairments should consider Bagnaccio approximately 5 kilometres north, which has a managed car park, structured pool access, and more facilities overall.
No changing rooms or showers exist on site. Visitors should arrive ready to enter the water, bring their own towels, and wear pool shoes, as the mineral-encrusted ground can be slippery. There is no shade in summer, so a hat and sun protection are useful. The site is a free natural hot spring in Italy that functions as a community bathing space; thermal mud on the pool floor is used informally by some visitors as a skin treatment.
The site is busiest on warm weekend afternoons; weekday morning visits are quieter. There is no formal supervision on site, so visitors are responsible for their own safety throughout. The proximity to Viterbo makes Bullicame a natural addition to a day combining thermal bathing with sightseeing in Tuscia.
Safety & Etiquette
Bullicame Hot Springs Safety Tips
Bullicame Hot Springs requires particular attention from visitors. The primary spring crater produces water at 58 degrees Celsius, which is hot enough to cause serious burns on contact. The water cools as it flows from the crater into the bathing pools, but visitors should always test the water temperature carefully before entering, starting at the edge and checking conditions away from the inflow point. The smaller oval pool receives more direct spring water and is significantly hotter than the larger elongated pool. Children must be supervised at all times near the crater and pool edges.
The spring releases hydrogen sulphide gas as part of its natural activity. The sulphur smell is characteristic and noticeable on arrival. Individuals with asthma, chronic respiratory conditions, or sensitivity to sulphur compounds should be cautious. Those with cardiovascular conditions, low blood pressure, or recent surgery should seek medical advice before bathing in thermal sulphur water. Pregnant women are advised to consult their doctor before visiting.
There is no lifeguard, no staff, and no emergency facilities on site. Mobile signal is occasionally unreliable. Stay hydrated, limit time in hotter sections, and rest between soaking periods. The acque termali here are genuine geothermal waters; the sulphur mineral content means etiquette differs from a managed spa.
Respect the site by taking litter away. Parking is free but unguarded; do not leave valuables in vehicles. The site closes around 17:00 in winter and 18:00 in summer. Gates are locked after closing.
