Pssst... we have a confession to make. As life-long Californians, can you believe that we haven't ever spent much time in San Diego? I know, I know. We've been missing out! So when we asked our oldest son Levi what he wanted to do for his birthday, his only ask was to visit a zoo. Steven and I talked it over, and decided that it was time to take the kids to the best zoo in the United States (and maybe even the world?!). And because there's so much to see and do in San Diego, we gave ourselves a week to camp, hand and explore this sunny Southern California…