This aquarium is so unassuming from the outside, once you walk through the gate, you are transformed by the view, the beauty of the fish, and the aquarium itself. During COVID we bought next day tickets easily online. Simple process. The humpback whale iSphere is a DO NOT MISS! This experience was mesmerizing, awe inspiring, and done over a 3 year span by free divers just out in the ocean outside the aquarium location in Lahaina, Maalaea Harbor. Just amazing. We had 4 adults and two boys ages 9 & 10 and they were awestruck, we all were. Amazing experience.