Among the oak forests of Paveh at a distance of 90 km. from Kermanshah exists the Qoori Qaleh Cave which is considered the largest cave with water in Asia. This cave begins in the Qoori Qaleh Village and according to people continues till Iraq. In 1989, a group of mountaineer of the mountain Climbing Institute of the province succeeded in discovering the internal portion of the cave and its various halls. This group in addition to gaining access to the depth of the cave discovered about 12 dark and meandering paths and mapped them. The Qoori Qaleh Cave is about 3,140 m. in length. In this cave a rare species of bats has been seen. Some articles related to a relic of an ancient Sassanid castle nearby have been discovered.