Since 1983 it has been the main source of drinking water for Gdańsk and is not open to tourists. The 2411 KW hydroelectric plant is worth discovering by means of the exhibition of photographs, “The unknown beauty of hydroelectric power plants”. This place is a convenient location to start a canoeing trip along the lower Radunia.

The Radunia flows out from Kashubia, and has the characteristics of amountain river. Over the 105 km of its length the slope from the source to the mouth is 162 m. As much as 107 metres of this is used for power generation. As many as eight power plants were built on its short course in the 19th and 20th Centuries. They supplied electrical energy to Gdańsk. The power plants are located in Rutki, Łapino, Bielkowo, Straszyn, Prędzieszyn, Kuźnice, Juszkowo, and Pruszcz Gdański. They form a cascade system, which means that the majority of them must be active at the same time. Of the eight plants mentioned, the bigger ones located in the upper course of the river may be visited – Rutki, Łapino, Bielkowo, and Straszyn.