Giardini Poseidon Terme
seasonal thermal park by the sea
About
Giardini Poseidon is a thermal park in Citara bay on the island of Ischia. According to the operator it has 20 pools of thermal and sea water, fed by volcanic springs of 20 to 85 °C. The thermal pools Adriano, Aphrodite, Ischia, Arethusa and Ariadne are heated from 28 to 38 °C.
There is also a Kneipp circuit alternating hot (40 °C) and cold (15 °C) water, a Japanese bath, indoor pools Asklepio and Armonia, and the seawater Olympic pool Olympia. The Turkish bath in a tuff grotto runs at 45 °C. The park is open only from April to October.
- Five thermal pools at 28–38 °C, the warmest being Ariadne
- Kneipp pools alternating 40 °C and 15 °C water
- Steam grotto in tuff at 45 °C
- Seawater Olympic pool Olympia and children's pools Tortuga and Medusa
- Wellness centre with treatments and a beach by Citara bay
Opening hours
| Park (18 Apr–31 Oct 2026) | 9:00–19:00 |
|---|---|
| Park from 25 Oct | 9:00–17:30 |
| Wellness centre (until 17:30 from 1 Oct) | 9:00–18:30 |
The 2026 season ran from 18 April to 31 October; check the site for next season's dates. Ticket offices keep the park's hours. From 1 October the wellness centre closes at 17:30.
Prices
| Full-day ticket | 50 € |
|---|---|
| Afternoon ticket, 1–7 pmfrom 25 Oct from 12:00 | 45 € |
| Evening walk in the park, 6–7 pmno pools or services | 8 € |
| Child 4–11 | −50 % |
| Bathrobe rental30 € deposit; see note | 15 € |
| Beach towel rental5 € deposit | 5 € |
| Wristband | 5 € deposit |
| Parking, car | 6–7 € |
Children up to 3 enter free. Parking is free in April, May and October except weekends and holidays. The car rate differs on the site (6 € or 7 €). The site gives different robe prices (15 € plus 30 € deposit in the price list, 10 € plus 30 € in the FAQ); confirm on site.
Amenities
What is here and what is not. Not everyone wants saunas and pools, not everyone a swimwear-free sauna.
- Poolyes
- Thermal wateryes
- Outdoor pool or tubyes
- Swimwear-free zoneno
- Steam bathyes
- Entry without a stayyes
What is not listed here is unknown to us or the operator has not said.
Swimwear rules: Swimwear is required and a swim cap is mandatory in all pools.
Pros and cons
Pros
- 20 pools, five of them thermal at 28–38 °C
- Kneipp circuits and a steam grotto in tuff
- A beach and a seawater Olympic pool
- Sunbeds, umbrellas and showers are included in the ticket
- Afternoon ticket is 5 € cheaper
Things to keep in mind
- Season only April to October
- Children under 12 may not enter the thermal area
- A swim cap is mandatory in all pools
- Day ticket is 50 € and parking is extra
Who it suits and how it works
Who it suits
- a couple for a full day by the sea
- recovery in thermal pools
- family with children at the beach pools
Rules and good to know
- A swim cap is mandatory in all pools; the boutique sells caps and swimwear
- Swimwear is required and a shower is needed before using the pools
- Children under 12 cannot enter the thermal area; they have shallow and seawater pools Olympia, Tortuga and Medusa
- Cancel wellness appointments at least 5 hours ahead or the full price is charged
Getting there
The address is Via Giovanni Mazzella, Citara bay, Forio. The park has a covered paid car park with limited spaces (car 6–7 €, motorbike 4 € per day).
Contact
- Address
- Via Giovanni Mazzella SNC, Baia di Citara, 80075 Forio (NA)
- Phone
- +39 081 908 71 11
- [email protected]
Details from the operator's own site, as of 1 Nov 2026. Check them with the operator before you go: giardiniposeidonterme.com
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