Jaskinia w Trzech Kopcach (The Cave on the Three Mounds), also called Grota Klimczoka (The Grotto of Klimczok), is one of the landslide, slotted caves. It is located near the top of Trzy Kopce in the Klimczok Massif in the Silesian Beskids. It is the third longest cave in the Beskids. The Grotto of Klimczok, located not far from the yellow tourist trail connecting Klimczok and Blatnia. It was discovered relatively recently, in 1946.