Spanning 100 acres in Balboa Park, the San Diego Zoo ... everything the zoo has to offer. Should your feet grow weary while exploring, the zoo offers a 35-minute guided bus tour of the park.

SAN DIEGO — The San Diego Zoo marked National Panda Day by showcasing its two giant pandas, Xin Bao and Yun Huan, drawing thousands of visitors eager to catch a glimpse of the rare animals.