Small But International Company:
Planet Windsurf operates shops all over the world, opening up some locations as the seasons change, and closing others temporarily. Outside of Greece, they also offer windsurfing in Brazil, Egypt, Spain, and other places around the world.
Hey, They're Located on a Perfect Windsurfing Spot:
Surprise, surprise. These guys don't open up unless they've found the perfect spot. Their location on Mykonos offers a nearly foolproof bay with a variety of different conditions consistently occuring depending on your pleasure.
Open May Through October:
...but they admit the best season is June through September. The opening date in May and the closing date in October may vary.
Planning Ahead? Try the Online Windsurfing Booking Feature:
But don't worry if you can't book ahead - they have about 170 riggs available at Mykonos, about 60 at Rhodes.
Planet Windsurfing: