If you think quicksand only exists in cartoons or old westerns, think again.
A guy from Arizona got stuck in quicksand while he was hiking with his girlfriend in a National Park in Utah over the weekend. His left leg was stuck up to his knee, and he said it felt like concrete.
So his girlfriend had to hike out for three hours and call for help, all during a winter storm.
Even after the helicopter rescue, they had to spend the night in the Park, and head to the hospital the next day.