One of the best natural sights in Bursa is a fresh water lake that stretches over 140 km 2 but is so shallow that its deepest point is only 3 meters deep. Within the lake are 7 islands, the largest of which is the island of Halilbey.

Lake of Olubat lies to the south of the Sea of ​​Marmara, and is fed from Mustapakemalpaşa river, as it emerges from the lake Uluabat stream where it pours into Susurluk which ends in the Sea of ​​Marmara.

Lake Olupat attracts thousands of tourists annually. It is one of the most beautiful lakes in Bursa. The lake is also home to fish, where 21 species of fish have been discovered, despite its shallowness. The lake is also a breeding ground for water birds, so it was declared a nature reserve in 1998 due to its importance. Environmental and an area with a rich vegetation and animal cover.

The area was famous for its silkworm culture and natural silk industry, but today the industry has died because of the existence of industrial cloth and because of the abandonment of the people of this work, fishing is today is the main work of the population of this town.

Lake Olopate is an ideal place for hiking, camping and family outings, where there are many boats that offer the possibility to walk around the lake to get to know its features and surroundings. Many lakeside restaurants are available for meals and enjoy spectacular lake views, especially at sunset.