dont really know where everyone is comin from but ill start from downtown.
if you come from down town you want to take 288 south.
stay on 288 south untill you come to Beltway 8, exit and you want to take a left, and go under the freeway. stay on the feeder road and do not enter the tollway. get in the right hand lane and ride it for about a mile or two. not really sure on the address and cant really be sure about distances but you will see the park from the road. there are also signs that tell you. youll turn in and there will be a golf course in the park as well. dont know the exact location of the get together but it will be at one of the pavilions. i hope this helps. its fairly simple to find. its right off the beltway.
Later
Daniel