Well, I can tell you about the Olympic Park in London. It's used a lot. My kids have their swimming lessons in the olympic pool, and friends kids have diving lessons there. A friend of mine is a coach who runs sessions in the velodrome, BMX and mountain biking tracks. The downsized stadium is now home to West Ham - although fans aren't greatly enamoured with their new stadium which is mixed athletics/football, so the atmosphere is perhaps missing.

During the summer we go there a lot the playgrounds and gardens are gorgeous. Yes, a lot of the temporary venues have gone and there is a vigorous building programme, building both flats and office space.