On the western side of Bursa, in Çekirge, the hot spring baths rich in iron and sulfur, which have reached the Middle East, come from Mount Oludag. The discovery of hot springs at the Turkish Stock Exchange dates back to close periods of Roman times when the first hot spring baths were established, and the Byzantine state also paid great attention to them.

Today, hot spring baths are often used by Turks, especially in the cold winter months, and also enjoyed by Arab and foreign tourists, and the Kara Mustafa bath is the most popular stock exchange.

Some hot springs on stock have high sulfur content and their water temperature is up to 80°C, while others are characterized by mild temperatures ranging from 38°C to 57°C and also free of sulfur.