Chehel-Khaneh Cave is one of the caves and tourist attraction of Bushehr Province located in Zirah Village 7 kilometers from Saadabad City in Dashtestan County, and 27 kilometers from Borazjan-Ganaveh Port Road.
This cave consists of a set of chambers (dakhmas) that have been created on a mountain range overlooking Shapoor River. The internal parts of the dakhmas differ in size, and this difference depends on the resistance of the mountain's stone against erosion natural factors such as flood. These dakhmas are interlinked from inside and there are niches and streams in each of them. The dead bodies of Zoroaster's followers would be put in these dakhmas. Some of the dakhmas have been destroyed by the passage of time and due to natural factors. Currently, 23 of those dakhmas are remained intact. In fact, this cave was called "Chehel-Khaneh" because of the large number of its dakhmas.