The most famous place to have fun in the city is the Ancient Culture Museum, which originally charged an admission fee.
However, these days, admissions for locals are practically non-existent; they only really apply to tourists. The Ancient Culture Museum covers a large area, and locals know they can just climb over a low section of the wall to get in. Plus, even if they don't climb over, it's not as if they can't see the exhibits; the city often runs events where attractions are free for a few days. Locals just need to time their visits with these events.
But now, Yan Fei and his three companions didn't have to worry about such things. Attending a symposium meant they couldn't expect attendees to return empty-handed; handing out attraction tickets was a minor kindness that someone from the city administration would arrange.