We're lucky to have lots of playgrounds in walking distance, but there's one that my kids would choose over the others 9 times out of 10. It doesn't have the biggest slide, and it's not the newest or fanciest. Instead, it's one with plenty of dirt, big logs and rocks to jump off, a tunnel that looks like a fallen tree, and a slide with fossils etched into it. In short, it's giving my city kids some of the nature they crave! (I spent most of my childhood in tree forts, so I get it. :) While it might not be feasible to dig out a mountain in your backyard, here are some ideas to embrace nature during playtime.