Nicholas Canyon Beach is an awesome place for kiteboarding and kitesurfing. It is not really for beginners but I kite boarded there and I am a beginner. I have good control of the kite but just learning to water start. The wind here is pretty strong so in general use a 9m to 10m kite. There is a large area to kitesurf and there are awesome waves you can ride as well. Going there on a weekend I encountered a few surfers. They were left of the kite spot. Make sure you setup past the concrete ramp after the 2 orange flags. Ask the locals kiteboarding / kitesurfing there if you have any questions.
Here is the wind forecast : Wind Forecast