New Zealand Windsurfing Association
These courses take you through the stages of introducing the beginner to the equipment, getting them up and sailing, tacking, gybing and self rescue. It also covers running a school. First aid certificate is a prerequisite and the qualification expires after 3 years (needs renewal). I've just done this course and it's one of the best courses I've ever been on, Paul Tuck does a great job! It's also helped my sailing as I had to go back to basics (which I had never visited anyway). Contact the secretary of the NZWA for more information.