Peppy said:Hey John....
I marked a red dot where where I think a good meeting place would be. Shade, grills, playground and fishing close by.
The people coming will need to go through the main gate, go to the stop sign and bear right towards the information center. Then go past the information center and just keep following the road to the end, park on the left and you'll see the playground. Set-up area would be directly behind the playground towards the water.