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.
One of the most important attractions of this tourist area is its water springs, which, after merging, create a large river, which has become a factor for the creation of large gardens downstream of this promenade.
One of the important caravanserais located in Semnan province and south of Garmsar is "Ain al-Rashid" which is located a short distance from Ghasr-e Bahram caravansary.
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.