This cave has been dug to transfer water from the mountainous areas south of the village and is unique in its kind. This cave is known in the local language as Giri Konar or Behdeh.
Entering the castle requires a half-hour walk and you have to climb the mountain. Parts of the route are a bit difficult and not suitable for children and the elderly.
Ghasr-e Bahram Caravansary is located in the middle of a vast plain and there are no other artificial structures around it for a relatively long distance.