I drove a car full of out of town guests down the Denali Park Road a few years back.  One guest, Ray, is blind and can only see shadows.  I watched him listen patiently as the other guest ooo-ed and ahhed at bears, caribou and the mountain in the distance.  I did my best to fill in details to engage Ray in the Park experience.  The car-load gasped when we rounded a bend to see a large golden grizzly sitting on the road embankment just outside Ray's window.  The bear towered over the car and was beautifully backlit by the sun.  Before anyone could speak, Ray pressed his face against the glass and yelled, "Is that a bear?" and "I can see it!!!"