[custom_adv] The tunnel is also the largest of its kind in the Middle East and is built in a 3,500 square meter underground area with about six-meter height and a foreign investor is involved in the project. [custom_adv] The aquarium contains 1,080 cubic meters of water and the tourists and Isfahani citizens can view the rarest types of fish both on their sides and above their heads, experiencing the conditions that the scuba divers can see in 35-meters depth of the oceans. [custom_adv] The tunnel has 33 sub-aquariums in which various types of underwater species in sweet and salty waters, sponges and starfish brought to this aquarium from five oceans around the globe are on display for enthusiastic visitors. [custom_adv] The CHHTO chief Masud Soltanifar said on the sidelines of the opening ceremony of the aquarium that the opening of such complexes contribute to attracting a larger number of tourists to such beautiful Iranian cities as Isfahan. [custom_adv] The Governor General of Isfahan Rasul Zargarpur, expressing delight over the opening of the eye-catching project, said the Isfahan Municipality played a noticeable role in its completion. [custom_adv] An aquarium or exhibit tunnel is an underwater structure that passes through an aquarium, typically with sharks and related aquatic life. They are usually made of thick acrylic material. [custom_adv] Most aquarium tunnels are cylindrical in shape, though tunnels can be made elliptical to make them wider and still keep the top of the tunnel closer to the visitors, or even square. [custom_adv] The seas and the oceans as the habitats for the fish and other aquatic creatures have always interested the human beings. But most often, these beautiful creatures are impossible for us to see. [custom_adv] Therefore, the aquariums are built, so that the human beings can collect various aquatic species in one place, and the people can watch this beauty from a close distance. [custom_adv] The aquariums as one of the most important and beautiful tourist attractions have the capacity to attract thousands of visitors every year, and they are usually considered among the touristic places in developed countries. [custom_adv] Isfahan’s aquarium tunnel is the first one built in Iran with an area of about 3500 square meters. It is located some 6 meters under the earth surface.