The adults in this video are pretty limber. https://www.youtube.com/watch?v=d5ckSU7X7wg
Cindy and I went to Ritan Park on Saturday in Beijing. It's right in the heart of the city, and you see all kinds of activities -- people playing badminton without a net, table tennis on public tables, dance classes, lots of kids running around and adults playing hacky sack.
