The first step is always the hardest.

My apartment complex has an exercise trail. Actually, it's more of a sidewalk that runs along the outer edges of the complex. There are two picnic areas along the way. (I'm not sure how that fits in with the exercise theme, but it's nice to know the grills and picnic tables are available.) There is also three spots with traditional exercise trail equipment: a chin up bar, a slanted sit-up bench, and these:

I imagine if I spent more time in a gym, I'd know what they're called. You stand on them and swing your legs, mimicking skiing. While I found it a lot of fun to do, I really don't understand why they're on a walking trail. I mean, you're already getting in the aerobics by walking. What other benefits can swinging your legs in this machine give you?