In my experience, grass is only threatened if you have a lot of people in a very short time. Think concert or festival. Granted, NY/Manhattan has many more peop

In my experience, grass is only threatened if you have a lot of people in a very short time. Think concert or festival. Granted, NY/Manhattan has many more people than SF, but I don’t know if Central Park is that popular to reach those conditions? Golden Gate Park seems to cope fine indeed.