Besides the Vistula, the biggest river which is crossing the Krakow, there are still some other, smaller rivers, important for the city transportation. One of them is Dłubnia, 51 kilometers long river. It has its source in Trzyciąż village, then flows through Iwanowice, Michałowice fills the retention reservoir and heading to Krakow. Here, in Nowa Huta, it fills up the recreational and sports reservoir and feeds the Vistula.
Dłubnia is the main source of potable water for Krakow. In its mouth, it is so clear, so you can here catch trouts.