There is a patio in back that can serve this purpose. It's separate from the main dining room, but not a private room. It works. They can setup a long table for your group that feels private enough. I've been to various celebratory events there and it works great.
There is a patio seating at the back which canxserve the purpose of a ball room or where you calebrate birthdays. Dont worry about the weathet as they have heaters placed between the tables.
I have to agree with kirk and don't forget the food is incredible
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