What's that smell? It's a teeming avian sanctuary—and a sump of troubled waters. It's a mess that we created—and a puzzle we can't solve. It's California's Salton Sea, a hypersaline lake that kills the very life it shelters.
So, feeling like a plunge down a Himalayan river, a race up the face of a Patagonian spire, or a ski expedition to the North (or South—that's O.K. too) Pole? Feeling a little scared? That's why we call them Tough Trips.