They are 3 hours north.
I know why she wants us to visit. There's a concert going on, one that we wouldn't be interested in and she wants a FREE babysitter. Sorry, NOT happening!
I don't babysit unless it's a medical emergency and/or I gave birth to you or gave birth to you and it's something that you gave birth to.
So, since I did neither to either her or her kids, sorry, not happening.