I was walking from downtown Pittsburgh to the North Shore the other day.  It was a cloudy, gray day – the kind of day that people seem to stay inside for.  Then I came across Yu Zhou (left) and his daughter Liu Duan, both downtown residents, practicing Tai Chi in Point State Park.

They were gracious to allow me to photograph them as they performed their choreographed exercise routine.  It was wonderful to see a father and daughter staying fit together, and to see Liu learn from her dad as he led the routine.