As Origins Game Fair approaches I'm often asked lots of questions about what to do.
See my link here for packing ideas convention packing
I often sent folks to Eric's food map Origins Eats
Most recently I was asked about family events.... Origins does have a family room. Family Room -
Many of the game suppliers have over sized games that are fun to play.
Outside of the Convention Center some of my favorites:
Columbus Art Museum 30 min walk
Zoo (30 min drive) - there is also a water park next door Zoombezi Bay but I've not personally been there to recommend it or not.
COSI Science Center (25 min walk, but I'd drive)
Franklin Park Conservatory (10 min drive)
Short North shopping district has Big FunToys - kind of a retro toy store. (7 min walk)
16-bitbar video games has a family day on Sunday the 18th from 12-5 and Dirty Frank's hot dogs next door is perfect (30 min walk)