ISTANBUL, TURKEY - JANUARY 21: Divers are seen with fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: A diver is seen with fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: A penguin swims in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: A diver is seen with fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: Various fishes swim in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: A diver feeds fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: A diver feeds fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )
ISTANBUL, TURKEY - JANUARY 21: Divers are seen with fishes in a thematic pool at Istanbul Aquarium, the biggest thematic aquarium in the world, in Istanbul, Turkey on January 21, 2020. The Aquarium has 17 themes and 1 Amazon Rain Forest extending from the Black Sea to the Pacific, Istanbul Aquarium. ( Onur Çoban - Anadolu Agency )