Tourist attractions of Sari
Badab-e Surt is an exceptional travertine spring in Iran and the world which is located in Orost Village, Sari County. This spring was registered in the list of Iran's National Heritage in 2008 by Cultural Heritage Organization as the second national monument of Iran after Mount Damavand. Also, this spring was internationally registered as the world's second saltwater spring after Pamukkale in Turkey. Many years ago, there used to be a village near Badab which has already been destroyed.