Heybeli Termal Tesisleri (Kızıl Kilise), in Heybeli, Afyonkarahisar province, offers thermal water at 40°C alongside indoor pools, outdoor pools and a sauna.
Insider tip — Heybeli Termal Tesisleri lies near the town of Kızıl Kilise in Afyonkarahisar Province, a plateau region in western Anatolia famous for Turkey's most prolific thermal springs. The facility draws on deep aquifers that yield mineralised water near 40°C, historically valued for cardiovascular and arthritic treatment. The nearby ancient red-church ruins add cultural interest to a thermal visit.