The longest salt cave with a length of six thousand and five hundred meters is located in the western part of Qeshm Island. The salt deposits of this salt dome in Qeshm, which is in the form of a salt shaker, are the result of the deposition of mineral materials and salts such as sulfates, iron, sulfur, and common salt. This salt dome is 170 million years old and has been formed during Precambrian Era.
The caves in the Qeshm’s Namakdan (saltshaker) dome are named caves number one, two, and three, which cave one is for exhibition and it is open to tourists. The other two caves, which the longest salt cave of the world is one of them, are considered scientific and research caves due to the weakness of the walls the and possibility of collapse, and only professional cavers and researchers who are equipped with caving tools can visit them.
The salt cave of Qeshm was registered as one of the geosystems of UNESCO Global Geoparks as well as a National Natural Heritage Site in 2011.
Salts that are extracted from this cave have medicinal properties and are used as salts in medical sciences, especially for professional athletes in the form of capsules. The compounds of the salts in these caves include magnesium.
Description of Qeshm salt caves from the perspective of a tourist: Travelling the coastal road of Qeshm Island has its own distinct attractions. On the way to the Qeshm salt dome and salt cave, the hands of nature have painted the most beautiful figures. As if you are searching for unknowns on a remote and uninhabited island. Here you can find yourself a sanctum even amid the intense bumping at the back of the car. Negligence is regrettable! At any moment, you should expect to see different shapes and objects alongside each other.
The salt caves of Qeshm are located at the heart of the salt dome, which is one of the highest parts of Qeshm Island. At the entrance of the salt cave, from another perspective, the salt water acts like a mirror and reflects everything. There are glassy crystals of salt on the floor of the Namakdan cave of Qeshm, no spot of this cave is similar to any other of its spots. When you look in any direction you will see new shapes and colors and all this beauty delights everybody. In some texts, it has been mentioned that the salts of the salt dome are among the best edible salts.