Can I have a small meetup of people there 10ish. Can we bring lawn chairs and hang out and have beer.

Just show up at 5 am with cigars and a small carnival of jugglers and midget clowns... they love unexpected events...

You can, just call and ask before doing so. As long as you buy the beer there...vs showing up with it. Lol There is a grassy area next to deck that would work pefect.

Sure you can. They don't open until 11:30🙂