Terme di Agnano

Terme di Agnano is a thermal park on Via Agnano Astroni in the Agnano district of the Campi Flegrei, the volcanic Phlegraean Fields on the western edge of Naples in Campania, Italy. The setting is a former volcanic crater basin long known for hot mineral springs, and the complex combines outdoor and indoor thermal pools with natural steam grottoes. The atmosphere is that of a large, relaxed hot-spring resort rather than a quiet boutique spa, with open-air water, loungers and a mix of Neapolitan families, couples and visitors from abroad. The best-known feature is the Stufe di San Germano, a set of natural steam rooms heated by volcanic activity, where the humid warmth is used for sweating and breathing treatments in the regional tradition of Phlegraean thermalism. Alongside the grottoes, the thermal pools are fed by mineral-rich spring water, and the programme includes thermal mud treatments, massages and other body treatments. As with other Italian termali, treatments are typically delivered by trained spa operators working under the centre's own protocols, and the reputation of the site rests on its long local history as a thermal destination in the Naples area. Facilities include several thermal pools at different temperatures, the steam grottoes, treatment rooms and relaxation areas. Opening hours differ between the pools and the Stufe di San Germano and vary by weekday, with evening openings on some days, so the published schedule should be checked before travelling. Booking norms are strict: the property states that reservation is always required, so walk-in visits are not advised. Entry options are sold as pool access, a combined pool and Stufe di San Germano ticket, or multi-entry passes, with prices reported from about €35 for the pools and about €80 for the combined ticket, and occasional promotions. A visit typically takes half a day to a full day. The site is reached from central Naples by local transport towards Agnano, and the park lies close to other Phlegraean attractions such as Solfatara and Pozzuoli, which makes it easy to combine with a day exploring the volcanic area. Visitors should bring swimwear, a towel and flip-flops, and should expect to confirm the day's schedule directly with the property.