Poseidon Thermal Gardens (Ischia)

Poseidon Thermal Gardens is one of the largest thermal parks on the island of Ischia, in Italy's Campania region, set above Citara Bay at Via Giovanni Mazzella in Forio. It is a day-trip destination from Sorrento rather than a Sorrento venue: visitors reach Ischia by ferry from Naples or Pozzuoli and continue by bus or taxi to Forio. The setting is a terraced garden complex of around 20 thermal pools at different temperatures, linked by paths and shaded areas, with direct access to the sea at Citara beach. Ischia's volcanic geology supplies the mineral-rich thermal water, and the island has a long tradition of thermal bathing, so the park reflects a regional wellness culture dating back centuries. The main experience is self-guided pool-hopping, moving between warmer and cooler pools through the day, which makes the park more of a thermal garden than a treatment spa. Paid massages and other treatments are available on site; specific treatment names and therapist qualifications were not verified, so visitors who want a massage should check the park's website or ask on arrival. Facilities include the pool circuits, beach access and the surrounding gardens. Booking norms are simple: the park operates a day-ticket system, and no appointment is needed for entry. The basic adult day ticket has been reported at EUR 32 (about USD 37), rising to EUR 34 in August, plus a EUR 5 refundable deposit for the wristband. The park is seasonal, running roughly from late April to October, typically 9AM to 7PM; these are 2025 dates, so the 2026 calendar should be confirmed at giardiniposeidon.com before travelling. Because the trip involves a ferry, a transfer and a full day on site, it works best as a planned excursion rather than a spontaneous one. Swimwear is required, and the thermal pools are hot, so visitors with heart conditions, pregnancy or blood-pressure concerns should check medical advice before bathing at the higher temperatures.