I don't think you understand how shocking the discovery of a hiking path is in Santiago unless you've visited. We once drove for three hours searching for a hiking path only to get back out of the car and give up. It's possible to hike in the mountains, which are an hour and a half away, but even then you have to be on someone's land or on one of a few paths. There are no national parks or anything.
But someone from our school found a hiking path around a pond (probably built by the industry right next to it)--and it is amazing. It makes me feel like I'm back in the U.S. I'm giving you some pictures below of the family hike we took with some friends.