V.W.
If you have any yard space, set up a horse shoe pit, or get a set of Bocce balls and play that. Unless their kids are under age 6, they should be able to play, too. And even though horseshoes is kind of an "old fashioned" game... when we've played it at church picnics it ALWAYS is fun.
And as for Bocce, as our pastor used to say: "It's the perfect sport. You can play without having to set your beer down."