Kelly Tarltons isn't big, but there is a lot there. Be prepared for long queues to get in, though, and lots of children, especially if it's the weekend or school holidays, and don't think "we'll go there today, as it's wet and cold", as everyone else in Auckland thinks that too!!The first exhibition is part of the Antarctica display, which is an exact replica of Captain Scott's hut in 1911, which he and his team used during their doomed attempt to be the first to reach the South Pole. Everything is very carefully laid out, with the sights, sounds, and smells that Scott and his crew would have experienced.
In contrast, there is also a display on the Scott Base 2000, which highlights the many, many differences and progressions which have been made in exploring over the years.
Then, it's onto the Antarctic landscape, which is where the penguins are. You take a ride in a Snow Cat, and drive around the edge of the penguin's area. There are times that you can see them being fed, but that is more luck than judgement, and, we were lucky enough to see a baby one!
Once you climb out of the Snow Cat, you move onto the Underwater World, which is a big tunnel with a moving walkway, so you can stand and be carried around the viewing point as you look around you, and over you, to see the many types of marine life that is in there, such as stingrays (I never realized how big they grew to!!), moray eels, and even sharks! There are also smaller displays of reef life, fresh water life, and other types as well, displayed in tanks of varying sizes, all with information panels about what you are seeing.
At the end, by the souvenier shop, there is the "Changing Room", which is a discovery center aimed at children, but we enjoyed it just as much!! There is a shallow tank with hermit crabs and starfish in that you can pick up and touch (but follow the directions on the wall very carefully, so you don't harm them), and other hands-on displays you can play with.