Postcard from Iran - Ali-Sadr Cave.
The Ali Sadr Cave (Persian: غار علی صدر) originally called Ali Saad (meaning dam) or Ali Saard (meaning cold) is the world's largest water cave. It is located about 100 kilometers north of Hamedan in western Iran. Since the cave is situated between the large cities Hamadan, Tehran, and Qom it is a popular destination for Iranians.
Postcard from Abbas - received in January 2013. Thank you very much!:)