Activity for Catherine

I'm having some difficulties with the WW guest list tool, and though its a very helpful asset to my planning process, I need your help! I have some friends who I am anticipating they'll be bringing a date to the wedding. I don't know their names, so...

I need help finding a post wedding brunch spot preferably in the Decatur Square area in ATL, as a lot of guests will be MARTA'ing it up to the Marriott and won't have vehicles. I am trying to keep it casual and on a non-invite, word of mouth type...