Divers can get stuck in the narrow passageways down there and run out of oxygen, but when accompanied by a professional, it’s more likely that you’ll just get stuck for a second and find your way out.
The Iditarod Sled Dog Race
Every year, experienced mushers push through 1,000 miles of snow and ice to claim the Iditarod prize, a pat on the back and a rotating trophy. Oh, also there’s a $500,000 cash prize for the winner, who is also given a new pickup truck from whatever brand chooses to donate it.