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This geosite is among the most important geosites in the geopark. The salt dome (diapir) of Namakdan is a unique structure in the Island including several outstanding structural, mineralogical, erosional and sedimentary sceneries. In this Geosite the world record Namakdan Cave exists, the world longest salt cave, 6500 meters.
The Namakdan Salt Complex (Cambrian) actually includes several smaller geosites. There are Salt flats, Playa, Salt springs, Amazing salt outcrops, sink holes and many other structure and forms. This geosite has been registered in the National List of Natural Heritages (2010). There are 3 main entrances; Show Cave (No.1) is open for general visits; visit to Polje Cave (No.2) needs arrangements with geopark management and should be done by geopark guide assistance. The 3N Entrance is a very delicate and also dangerous; it is possible to visit just for speleology professionals, geology specialists holding particular, written permission from the Qeshm Island Geopark Management.
There is a spectacular polygonal form on the southern wall of salt dome in front of the sea. This structure created by salt surface fractures and step erosion in the beddings surface at the same time.
Namakdan Slat dome has an outcrop of 7 kilometers in diameter. Namakdan Salt Cave is located inside Namakdan Salt Dome resulting the Karst process and salt dissolution and forming underground channels and galleries. Inside the cave there are different types of sedimentary forms and speleothems. Erosion forms are more than sedimentary forms because of the water high capacity of saturation.
