In the middle of Šumadija, a natural phenomenon An unusual heart-shaped lake named Bubanj is located in Kragujevac, often called the heart of Šumadija. Formed in the 1970s from former brickyard ponds, it covers 3.5 hectares and is about one meter deep. The lake is a rarity in Serbia and is a popular destination for anglers and visitors, offering various fish species and a developed recreational area with a beach and catering facilities.

• Bubanj Lake, located in Kragujevac, is unusually shaped like a heart.
• It was created in the 1970s from former brickyard ponds and now covers 3.5 hectares with an average depth of one meter.
• The lake is a rarity in Serbia and is a popular spot for fishing, with species like pike, roach, carp, crucian carp, and grass carp.
• The left bank is developed with an 800-meter beach, promenade, seating, volleyball courts, and nearby catering establishments.
• Kragujevac also has other lakes: Šumarice Lake near the city center and Grošničko Lake, built before WWII for water supply.