Grajcarek is a minor river, a stream, running between foothills of the Lesser Pieniny and Beskid Sądecki.

[1] The river flows through Jaworki, Szlachtowa, and flows into the Dunajec in Szczawnica, just before the characteristic Kotuńka Rock, at an elevation of 430 metres.

The river flows in the general direction of East to the West of the valley, which is also the border between the Pieniny and Beskid Sądecki.

Formerly Grajcarek was called Ruski Potok[4] which can be translated as Ruthenian Stream (before Operation Vistula when the villages which were located around the river Szlachtowa, Jaworki, Biała Woda and Czarna Woda were inhabited by Lemkos, see Ruś Szlachtowska).

The name of the river Grajcarek was given by tourists and bathers at the end of the 19th century.