Morteza Ali hot spring is one of the natural tourist attractions in the city of Tabas in South Khorasan province. This spring is located in the tourist route of Kharv village and at a distance of 27 km from Tabas city.
Blue Mosque according to the inscription on its entrance; It was built in 870 AH, during the reign of Sultan Jahanshah, the most powerful ruler of the Qara Quyunluyan dynasty.
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.