Jefferson Park is home to Seattle Parks' Horticulture division. Each year they have an open house. We've never managed to go until this year. It was impressively awesome. A large part was the lack of crowds, but the fact they had a digger, a fire truck, a bouncy house and dump trucks for the kids to climb into was fantastic. Theo and Vivian also liked the free food and free candy at each table.
See all the photos.