Auckland Zoo's Indonesian swamp forest will open on Saturday.

It is the last piece of the puzzle in the South East Asia Jungle track - and provides a tropical experience with a climate-controlled dome.

Auckland Zoo's Don McFarlane says the climate-controlled environments were a necessity to make sure all the animals with different needs were taken care of.

"It covers that huge diversity of animals that have to modify their behaviours to the environment to get either warm or cool. To bask or seek shade, or regulate their body temperature. It includes multitudes of things, the reptiles, the fish, the amphibians, the invertebrates. Literally millions of species."

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