My sister would like to do her vow exchange at this park because of the scenery. It will only be 7 people there , is this allowed?

I think there is no problem, and it is necessary for those moments

You can probably rent a pavilion for that. I would call to make sure before renting though.

I don't believe you'll have any problems. But, I would give them a call anyways.

I've never heard of any type of restrictions regarding this type of thing. Best to call the park I think.