Aslanlı Jeotermal Spa is located in Orhaneli, Bursa province, Turkey, fed by a geothermal spring reaching 55°C. The hammam offers a steam room, marble slab, kessa scrub, beldi soap and massage.
Insider tip — Aslanlı Jeotermal Kaplıcaları in the Orhaneli district of Bursa, near the Sadağı canyon — a site used as thermal baths since Byzantine times. Natural geothermal spring water at 50–60°C sourced 6 km from the site. Day-use hamam, pools and saunas (men/women separately); 32 rental apartments. Surrounded by pine forests, walking paths, and picnic areas in peaceful nature.