Wind Window

Understanding the Wind Window is critical for managing the power of the kite and your direction of travel. This is basic theory that your kitesurfing lessons will cover. 
The Wind Window is defined relative to the rider.  The Wind Window is the three dimensional region of sky downwind of the rider in which the kite can be flown.

Wind directions

CAUTION: Do not kite in offshore or cross-offshore winds unless you are experienced and have a boat backup.
Assess the wind direction carefully.  Cross-onshore or cross-shore are best for kitesurfing.