This is such a great thread, but will never happen sadly :/
Cemeteries were actually our first "green spaces." They once became so popular that literature had to be handed out on how to properly use the space. Frisbees, blankets, drinking, relaxing --- it was once a wonderful space to not only mourn the dead, but reconnect with nature and get away from the city life. They got so popular that eventually cities had to find real "green spaces" --- not to long after that we got Central Park. Pretty cool!
Now they are only viewed as mourning spaces, bummer. I love the idea of DG courses and cemeteries.