At the Upper Düden Waterfall (36°57′49.7″N 30°43′36.1″E / 36.963806°N 30.726694°E / 36.963806; 30.726694), the water of the Düden River reappears from a karstic source after having disappeared 18 kilometres (11 mi) away at Bıyıklı Sinkhole.

Water coming through a canal from Kepez 1 Hydroelectric Power Plant forms the waterfall, which drops into the basin of the source.

The site is fenced in and can only be accessed at the opening hours and by paying a fee.

The opening hours are 08:00–19:00 from April to October and 08:00–18:00 from November to March.

The waterfall is surrounded by Düden Park[3], which is open to the public around the clock and free of charge.