The San Diego Zoo in Balboa Park, San Diego, California, with over 4000 animals from over 800 species in an area of 40 hectares (0.4 km ²) of one of the largest zoos in the world. It is used by the Zoological Society of San Diego private and non-operated.

The San Diego Zoo offers excellent guided tours of the zoo by bus. Furthermore, there is a Skyfari called Gondola, which provides an excellent overview of the site and also offers an opportunity to quickly move from one end of the zoo to another. Most animals in the San Diego Zoo live in a replica of their natural habitat.

These habitats also contain the habitat’s typical plants which makes the animal ‘comfortable at home’. The habitats range from the African rain forest to the Tundra and the Boreal forests. For the visiting birds of many species, the San Diego Zoo also has one of the largest and well-maintained aviaries. The San Diego Zoo is also a part of the San Diego Wild Animal Park, where the animals find more living space than the San Diego Zoo provides.

The San Diego Zoo developed from an exhibition of exotic animals, which after the 1915 Panama-California World’s Fair was abandoned.