Terme dei Papi

Terme dei Papi lies just outside the historic centre of Viterbo, in the Tuscia countryside of northern Lazio. Its centrepiece is the monumental open-air thermal pool, which the operator says covers an area of two thousand square metres and is fed exclusively by hyperthermal water from the Bullicame spring; the water is described as emerging from the spring at 58 °C and arriving steaming in the basin through stone mouths that pour towards the centre of the pool. The operator also gives the water in the monumental pool a constant bathing temperature of 36 °C.

The water is classified by the operator as a sulphurous, sulphate-bicarbonate alkaline-earth water under the name "Bullicame". The operator attributes to it antioxidant, soothing and regenerating properties and a specific content of trace elements, and lists therapeutic indications for the respiratory tract, the locomotor system, chronic skin conditions, the female gynaecological system and venous and lymphatic circulation. Alongside the pool the establishment offers thermal cures recognised by the Italian national health service (mud therapy, balneotherapy and inhalation treatments) under medical supervision, a diagnostic service, the filiform shower, a natural steam grotto where thermal vapour is used for cleansing and muscular relaxation, hydrosound and a vascular circuit, as well as a spa with thermal, facial, body, holistic, ayurvedic, beauty and ritual treatments, a hotel (Hotel Niccolò V) and a restaurant. The company also sells a thermal cosmetic line, Aqua Dives, based on the water and mud.

According to the operator the thermal centre is open 365 days a year, holidays included, continuously from 9.00 to 19.00. The monumental outdoor pool keeps its own timetable: Monday 9.00–19.00; Tuesday closed for routine maintenance, with the closing day moved if it falls on a holiday; Wednesday, Thursday and Friday 9.00–20.00; Saturday 9.00–1.00, with the Bagno sotto le stelle night bathing every Saturday from 21.00 to 1.00; and Sunday 9.00–20.00. Changing rooms, showers, a bar and a restaurant serve the pool.