Jouer vs Faire

I am not really sure as to how what is the difference between Jouer and Faire. I know that Jouer means to play and that Faire means to do an activity/practise. However, I am confused as to when to use in and in what context.

Also, I know that some sports use the verb faire (ie:  Je fais de la natation) and others use jouer (ie:  Nous jouons au golf).  Is there a general rule as to which sports will use faire while others will use jouer?

Please explain, thanks!