In most national parks across the United States, things usually run smoothly. If you encounter any trouble, a simple call for help will do the trick. However, the situation is somewhat different at the Sleeping Bear Dunes beach in Michigan. While the scenery is captivating, the return journey can turn into a nightmare for visitors. This is because rescuing those who give up during the climb can sometimes cost thousands of dollars. Here's the story of that infamous $3,000 rescue operation that everyone's been curious about...