The Antalya Aquarium is one of the city's best-known family attractions. It sits in the Konyaaltı district on the western side of Antalya, a short walk from the long pebble beach that most visitors already know. Inside you follow a route past themed tanks with sea and freshwater life, and the walk ends in the part everybody comes for: a long glass tunnel under the water.
The aquarium is part of a bigger complex. There are other themed attractions in the same complex, but what is open changes, so check what is open and current tickets on the official site before you go. That way you can decide in advance whether you want only the aquarium or a longer visit.