disc golf - aka frisbee golf :

things i did not know ...

1) it is a sport

2) it is a professional sport

3) Professional Disc Golf Association - the worldwide authority on all matters disc golf

4) first known instance of anyone playing golf with a flying disc: 1926 . known as Tin Lid Golf .

5) Rule #1 from the official disc golf rule book: "Disc golf is a game that expects high standards of etiquette and courtesy."

(thanks to www.pdga.com for this classic photog circa 197x)

6) big hair , tube socks , and a datsun

7) this is a very serious sport