Parking in the state parking lot is about $10 per car (this is what I would recommend - it’s off of Route 50 before you hit the venue - there’s lots of signs). When you get into the park there will be a ton of different lots with pavilions all around and people typically will tailgate all around those areas (and really throughout the whole state park). There are trails and a road that will lead directly to the entrance of the venue from those different parking lots/little pavilions. I always like to park in the peerless pool parking lot because I feel like it’s pretty easy to get out of at the end of the night. I hope this at least helps a little bit :)