Let's face it. We're not all as competent as Bear Grylls when it comes to staying alive in the great outdoors. Still, with some simple precautions we can greatly enhance our safety in the backcountry and increase the odds of successfully confronting dire situations.

As Professor Bob pointed out two weeks ago, one of the must-see things at Biscayne National Park are the reefs teeming with rainbow-hued fish, corals, and sponges. While these delicate structures struggle with warming waters, disease, and physical assaults from boaters, divers, and anglers, volunteers at the park are working to preserve them by nurturing coral nurseries.

If you're thinking of a winter trek to Yellowstone National Park, there are some things you have to accept. One, more than likely it will be cold and snowy. Two, lodging reservations will be tricky, as there are a very limited number of lodges open. Three, it's not going to be cheap. But if you're OK with those three conditions, you'll more than likely have an incredible time.

If you've always wondered about visiting Rocky Mountain National Park, but didn't know what to expect, this video is for you. Narrated by Bill Kurtis, who rose to acclaim during his days at CBS News, this video highlights the lay of the land, from tundra to cataracts, showcases the park's renowned wildlife, and points to some of the adventures you can have in the park.