Food vendors are in Leland as is one stage. Beverages are in the big tent in the south parking lot, which is where one stage and most of the seating are. The north parking lot has sort of sideshow stuff and may have some beer.
Friday evening is definitely active for food and beer. Saturday afternoon will be mobbed with people. More than a few people will park west of Rockwell and even across the river. Friday and Saturday late evenings have a history of attracting some overage frat boy types. Sunday afternoon is more family groups.