Formed in 1962, when the hydroelectric plant of with the same name was built, the lake is located at an altitude of 325 meters, it has an area of 240 acres, a maximum width of 1 km, a length of 3.2 km and a depth of about 15 meters. Being an oasis of tranquility and recreation for the inhabitants and visitors of Piatra Neamt, the area offers a special view of Bistriţa valley. The lake is also sought by fishermen for the various species of fish that can be caught here, such as bleaks, chubs, gudgeons, nases, minnows, trouts, carps. Due to favorable climate change, Bâtca Doamnei Lake is a stopping point, sometimes even prolonged, for migrating birds heading south of Europe or to the Danube. Thus, on Bâtca Doamnei Lake, graceful and unusual species of birds can be admired, such as summer swans, grebes, merguses, silver-gulls and even more cormorant species. The waters of the lake surround the abrupt Bâtca Doamnei, on the plateau of which lie the ruins of Dacian Petrodava fortress.