Do they accept reservations for large parties?

I called, they do not!

I don't believe Black Bear Diner takes reservations in advance....

No

I wanna say no It's first come first serve so. Maybe designate a person to put name down w number in parry and they are pretty quick so long it's not like a holiday of some sort like mom's day . Unless you're an early bird. Like when they open early I would say expect a 35 mn wait but on a normal day a big party. I would say 20 to 25 min to get tables together. Ya know . Hope that helps.

Idn try calling n asking.