Rainbow Spring Park is a famous tourist attraction in Rotorua, built in 1928. It is the world's largest breeding farm, raising a variety of salmon, visitors can enjoy the ecology of salmon in the most natural state. There are many rare animals in the park, such as New Zealand nocturnal animal possums, prehistoric animal cold-blooded reptiles known as "New Zealand living fossils", and the exotic bird exhibition hall built especially according to the living environment of the exotic birds.