The San Diego Zoo is a world-renowned zoological park located in San Diego, California. It was founded in 1916 and is home to over 3,500 animals representing more than 650 species and subspecies.

The zoo covers an area of 100 acres and is located in Balboa Park, a 1,200-acre urban cultural park. The park is situated near downtown San Diego and is a popular tourist destination.

The San Diego Zoo is known for its innovative and successful animal care programs, including their successful breeding programs for endangered species. The zoo is also home to the San Diego Zoo Institute for Conservation Research, which conducts research and conservation efforts around the world.

Visitors to the San Diego Zoo can see a wide variety of animals, from pandas and polar bears to elephants and giraffes. There are also many interactive exhibits and attractions, including the Skyfari aerial tram, the Children's Zoo, and the Koalafornia Adventure exhibit.

The San Diego Zoo is open every day of the year, including holidays. Operating hours vary by season, and visitors are encouraged to check the zoo's website for current hours and ticket prices. The zoo also offers a variety of guided tours and special experiences, such as animal encounters and behind-the-scenes tours.