Badab-e Surt (translated gassed water) is located in Mazandaran Province in northern Iran, is considered one of the most incredible sights of its region approximately 95 KM’s south of the city of Sari and 7 KM’s west of Orost village. Badab-e-Surt comprises a range of stepped travertine terrace & rock formations that have been generated more than thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside. The red color of travertine terraces are due to iron carbonate minerals dissolved in water flowing from mineral hot springs. It is thought that the spring pool was created during the Paleocene Era and at the same time as the latest folds in the Alborz mountain range. Badab-e-Surt terraces are natural wonder made with two distinct mineral springs with different natural characteristics.
Badab-e-Surt is located 1,840 meters above sea level just west of the village or Orost. The first spring contains very salty water that gathers in a small natural pool; its water is considered to have medicinal properties, especially as a cure for rheumatism and some types of skin diseases and skin conditions. The second spring has a sour taste and is predominately orange mainly due to the large iron oxide sediments at its outlet. In one part of a floor of the pond, there is a deep hole is called the Bermuda Erost.
Moreover, stepped travertine terraces are so popular on planet earth. Such famous examples includes Mammoth Hot Springs in Yellowstone National Park, The White Water Terraces and Huanglong Scenic in China, Italy’s Bagni San Filippo, Mexico’s Hierve el Agua and most famous of them all Pamukkale in Turkey. The travertine terraces of Badab-e-Surt are bright orange, yellow and red as compare to others shades of white and blue, due to large amount of iron oxide sediments. Therefore, the water from two springs emanating from the mountain range have combined and resulted pools shaped as a naturally formed staircase. However, the surrounding vegetation to the north contains of pine forests while to the east it mainly comprises of short trees and shrubs; and rock quarries can be seen to the west of the site. Indeed, Badab-e-Surt is fantastic place to see, widespread due to usage of water treatment for many disease.
The site has been registered as 2nd natural heritage of Iran in UNESCO’s list. Therefore, the Orost village and Badab-e-Surt Spring are easily accessible via Semnan as most of way is being paved and vehicles are leaving dirt in the air leading up to the spring. It is suggested to visit the place during either sunrise or sunset when the sun’s light offers the orange reflection blends in perfectly colored spring. Although Badab-e-Surt is beautiful in all seasons, But the best time to visit is early April. The Badab-e-Surt is in danger of gradul erosion and eventual demise same like other natural landmarks in Iran however, the environmentalists and nature lovers have repeatedly expressed concern regarding protection of this natural wonder, citing that despite being registered as a natural site. So, it’s a must visit destination for all natural lovers.