Seafront thermal complex in the Sts. Constantine and Helena resort, fed by warm mineral water (30–42 °C) across 14 indoor and outdoor pools. The thermal zone has a Finnish sauna (80–100 °C), a herbal infrared sauna, hammam, steam bath, salt room and a 10–15 °C indoor contrast pool; the water zone adds an outdoor Finnish sauna and a 25 m pool. Open daily 8:30–20:30, with fitness, medical and spa programmes.
Medical spa of the Balneo & SPA Azalia hotel in the Sts. Constantine and Helena resort, built around the resort's mineral water. It has a traditional Finnish sauna, a combined infrared sauna, a marble oriental-style steam bath and an indoor warm mineral-water pool with jacuzzi. Sauna plus indoor pool costs 12.27 €, and pool, sauna, steam bath and gym together 15.34 € (October–April prices).
Spa centre of the Palace Hotel in the Sunny Day resort, renovated in 2020 and covering over 1,400 m² on the seafront. The thermal zone has Finnish, aroma and infrared saunas, a Roman steam bath, a hammam (extra charge), a contrast pool with ice, a salt room and indoor and outdoor pools with hot mineral water. Outside visitors can buy access. Open daily 8:00–20:00 from May to October, shorter hours in winter.
Spa of the Sirius Beach hotel in the Sts. Constantine and Helena resort, supplied by a 45 °C mineral spring 20 m from the hotel. The thermal zone has a Finnish sauna, aroma sauna, infrared sauna, steam bath, hammam, salt room and an ice bucket, plus a year-round outdoor thermal pool, an indoor mineral pool and an outdoor sea-water contrast pool. Non-guests pay 17 € for four hours or 21 € for a full day.
Seafront thermal complex in the Sts. Constantine and Helena resort, fed by warm mineral water (30–42 °C) across 14 indoor and outdoor pools. The thermal zone has a Finnish sauna (80–100 °C), a herbal infrared sauna, hammam, steam bath, salt room and a 10–15 °C indoor contrast pool; the water zone adds an outdoor Finnish sauna and a 25 m pool. Open daily 8:30–20:30, with fitness, medical and spa programmes.
Medical spa of the Balneo & SPA Azalia hotel in the Sts. Constantine and Helena resort, built around the resort's mineral water. It has a traditional Finnish sauna, a combined infrared sauna, a marble oriental-style steam bath and an indoor warm mineral-water pool with jacuzzi. Sauna plus indoor pool costs 12.27 €, and pool, sauna, steam bath and gym together 15.34 € (October–April prices).
Spa centre of the Palace Hotel in the Sunny Day resort, renovated in 2020 and covering over 1,400 m² on the seafront. The thermal zone has Finnish, aroma and infrared saunas, a Roman steam bath, a hammam (extra charge), a contrast pool with ice, a salt room and indoor and outdoor pools with hot mineral water. Outside visitors can buy access. Open daily 8:00–20:00 from May to October, shorter hours in winter.
Spa of the Sirius Beach hotel in the Sts. Constantine and Helena resort, supplied by a 45 °C mineral spring 20 m from the hotel. The thermal zone has a Finnish sauna, aroma sauna, infrared sauna, steam bath, hammam, salt room and an ice bucket, plus a year-round outdoor thermal pool, an indoor mineral pool and an outdoor sea-water contrast pool. Non-guests pay 17 € for four hours or 21 € for a full day.