Definitely in the top 3 zoos in the world, is top notch in all aspects

#backpackeressentials San Diego zoo is the most visited zoo in the United States. It sits on 100 acres of land. It has a cable tram ride that you will enjoy from one side to another side of this massive zoo. This zoo has over 680 species and subspecies. A standout feature is the tour bus, which runs continuously. I highly recommend starting your visit with the bus tour, it provides a fantastic overview of the park, allowing you to plan which areas you'd like to explore in more detail.