The easiest way is to apply online at
https://gcs.thevillages.com/cgi-bin/gc100
The passes will be ready and waiting for you (on weekdays) at the desk of whichever regional Rec center you select in the online application...but you need to complete the online application at least 2 days prior to the date you want to pick them up.
Otherwise, you can fill out the application in person as described in previous posts.