When it snows or rains in the Grand Canyon, we sometimes have white-out conditions. People visiting don’t understand why they’ve just traveled half way around the world to see it and it’s not there. During certain weather seasons, you should really try to schedule more time than 3 hours to visit from a tour bus. Everyone should get to see the Grand Canyon, especially if you’ve traveled all this way to see it 🙂
And sometimes if you wait long enough the mist/snow/rain clears up!