A tunnel aquarium is to be set up in between two valleys - Zağnos and Tabakhane - in northeastern Trabzon to boost the province's tourism potential and better promote the Black Sea's rich marine life.

As an alternative touristic attraction, the aquarium will be constructed through the valleys located in the city's Ortahisar town. The Zağnos Valley houses a national park with Byzantine-era aqueducts and mansions reflecting the traditional architecture.

Ortahisar Mayor Ahmet Metin Genç said, "Although Trabzon is a coastal city, many locals are not fully aware of the marine life and sea species. The tunnel aquarium is where we can showcase a variety of fish in the same place."

Many aquariums in big cities are normally set up in big malls and this one will be authentic enough to draw more tourists to the area.

A study and survey has been carried out to see whether the tunnel can be built in this area. The plateau-like area is normally separated with the valleys and two historic namesake bridges connect the residential area. The bridges have been used for transportation and providing water.

Announced as Turkey's most business-friendly and livable city by Forbes Turkey last year, Trabzon has been attracting thousands of tourists recently with its lush environment, lively atmosphere and cultural and historical heritage. In addition, Trabzon was also announced as the cleanest city in 2013, making it a travel hotspot.