When you go on vacation, you usually want to do something memorable, like zip lining— the sport in which you buckle yourself into a harness that attaches to thick metal cables, and then zip from point to point while dangling up to 100 feet above the ground with only your gloved hand to act as a brake. The beautiful views from your elevated perch provide a much-needed distraction from thinking about how you could fall to your death at any moment. Fun, right? Well, you don't have to venture to Costa Rica to experience this rush anymore. Just head about two hours up into the San Bernardino Mountains to Big Bear Lake, where Flying Bear Zip has made this mountain destination the first in Southern California to offer the zip-lining experience.