Bark in the Park, the annual dog festival at San Jose’s William Street Park, is widely believed to be the largest convening of canines in the country. It was expected to draw about 1,000 pups and 5,000 people from 10 a.m. to 5 p.m. Dogs showed off their humans and showed off to their humans on the agility course. There were also vaccinations from the Humane Society Silicon Valley with more than 80 pet-related vendors, live music, food trucks, and beer and wine stations.