Either don't go or don't drink.
It's a slippery slope GD
Right now you are giving yourself a "maybe" out
and that's a sure ticket to failure
In your mind, you've already relapsed and given yourself permission.
I know this because I did it many times myself.
Be honest and reflect and you'll see it too.
Be strong and sober for your kids if being with them is the point of the trip.