If you are inviting lots of guests who are traveling from both NYC and Long Island, the Chateau Briand should probably be on your list for possible sites. It’s close to the LIRR (walking distance!) and has a nice outdoor space complete with television screens.
Most probably know that I am not personally inclined towards catering halls. However, they do provide those planning a larger wedding with an affordable option. And I found myself feeling all warm and glowy even before officiating at a wedding in the outdoor space at the Chateau Briand.
Below, image taken with my ancient manual Minolta 35mm.