Namakdan cave is the longest salt caves in the world( 6400 meters) . Salt caves in Qeshm are the most beautiful natural phenomenon. Inside the cave is dark you need lights to see. The ceiling has Crystal Cressetsin different shapes .the salt water currency on the floor makes special aspects in salt caves. due to the humid weather and water penetration in the caves the shape of Cressets continuously change. In the heart of the mountain there is a permanent water currency underground and comes out in the slope on the mountain , in the cavity in the front, it makes a salt pool in white color Visualizing snow in every time of year. The salts of this cave is the best edible salt.