Practice stunts in San Antonio??

Does anyone here know of a place that is good to practice some stunting in San Antonio. Any large flat parking lots that don't usually have alot of cars in them? I have a friend that wants to learn to wheelie, and I am just looking for a place to teach him.

http://www.sanantonioriders.net/ There is a stunters section on this board. You can probably ask on there and see where everyone is meeting up.

i think theres a open lot at 410 and bandera behind the old EZ's plaza. in front of the office depot. lmk if thats a good spot