Hello Nicole,
Marathon has some locals spots and still more accessible by boat. I would get in touch with Kevin and Jenny at Above & Below Extreme Ocean Sports in Marathon. They should take good care of you and help you hook up with some riders. You may have some lightwind conditions but also it may honk through while you are visiting. If you can bring along a smaller flat kite, it might serve you well.
http://fksa.org/showthread.php?t=6765