Badab-e Surt (also written Badab-e Soort) is a hillside of mineral-built travertine terraces in Mazandaran Province, northern Iran. Its shallow stepped pools and orange, cream and reddish deposits make it one of the country’s distinctive natural landscapes.
The terraces formed gradually as mineral-rich spring water flowed down the slope and deposited carbonate minerals. The resulting formations are delicate geological features, not swimming pools or a developed spa.
The site lies near Orost village in the Chahardangeh area of Sari County, Mazandaran. Travelers exploring the region can also consult our Sari travel guide for wider geographic context.
Other mineral-terrace landscapes include Pamukkale in Türkiye and Mammoth Hot Springs in Yellowstone National Park, United States. Claims that only a fixed number of comparable places exist worldwide are not supported by a consistent geological classification.
Badab-e Surt is distinctive for the arrangement and color of its terraces. Their appearance depends on mineral deposits, the amount of flowing water, seasonal conditions and the light at the time of a visit.
Iron-bearing minerals contribute to the warm orange and reddish tones, while carbonate deposits build up the rims of the pools. These formations develop slowly and can be damaged by foot traffic.
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What is Badab-e Surt?
The name Badab is commonly explained through the Persian words associated with gas and water, while Surt is linked to a local place name. Spellings vary in English, including Badab-e Surt and Badab-e Soort.
The terraces are made of travertine, a form of limestone deposited by mineral-rich water. Water emerging from nearby springs leaves deposits as it flows downhill, gradually creating the stepped surfaces.
Early morning and late afternoon light can bring out the contrasting colors of the terraces. The appearance changes with cloud cover, season and water flow, so photographs should not be treated as a guarantee of current conditions.
What should I expect?
Expect an exposed hillside setting rather than a fully equipped visitor attraction. Conditions, access controls and visitor numbers can change. Keep to any marked paths and follow instructions from local conservation staff.
Do not assume that entry is free or that access is unrestricted. Fees, opening arrangements and protection measures can change; confirm locally before departure. Avoid walking on the fragile terrace rims or entering the mineral pools.
When is the best time to visit Badab-e Surt?
Spring, especially April and May, can bring milder weather and greener surrounding hills, but rainfall can make rural roads difficult. Winter access and water conditions vary; claims that the pools never freeze should not be relied upon.
How can I reach Badab-e Surt?
Badab-e Surt is reached by rural roads and may require a walk from the nearest vehicle access point. Walking time depends on the route, road conditions and any restrictions in place. A knowledgeable local guide can help with navigation.
Approaches commonly described by travelers run via Semnan, Mahdishahr and Shahrmirzad, or from Sari through the Kiasar area. Check the latest road conditions and route suitability before setting out.
Road surfaces and vehicle access beyond Orost can be rough or restricted. Do not rely on old descriptions of truck transfers or driving times. Carry water, suitable footwear and offline navigation, and avoid damaging vegetation or the terraces.
Conservation, sources and current travel advice
Badab-e Surt is a protected natural heritage landscape. For background on its formation and location, see Iran Press’s 2020 site report. At the editorial review on 27 October 2026, the UK’s FCDO advised against all travel to Iran. Check official guidance, local access and insurance conditions before making plans.
