Do you take reservations for a big party of 16? Or how early do I need to be there to get a table of 16 at 5 PM Saturday today.

I have made reservations for a large group before. But I made them couple days in advance. Call them

Call them directly, they'll tell you what works best for their business.

Yes schedule in advance they get busy around that time

I would scheduale in advance as early as you can. Im sure they can handle your party swimmingly.