Mentioned by UpgradedPoints.com
The 30 Best Things To Do in San Diego [Free Activities & Family-Friendly Attractions]
"The San Diego Zoo has more than 3,700 animals, including many rare and endangered species, that are showcased within different habitats throughout the zoo. Visit Africa Rocks to spot leopards and baboons, or journey to the Northern Frontier to watch polar bears swim in their arctic plunge pool. Save your tired feet and take the 35-minute guided bus tour that explores various areas of the park or check out the show schedule where you can learn more about some of the zoo’s inhabitants."