Serendipitous vacation surprise

Walking down a street in an unfamiliar city(Seattle) today, we stopped and figured we were lost. I spotted a young couple walking towards us so I decided to see if they were locals who might be able to assist.
I told them we were vacationing but that we were needing directions.... they seemed more than happy to help.
As they were instructing us.... I took notice of their enthusiasm and gracious smiles, and that the young man was letting his girl friend do all the talking.
As She continued, it occurred to me that her eyes seemed a little faded... Upon further examination, I noticed She was also holding a walking cane.
Before She finished her instructions, I realized we were getting our Directions from a blind girl.