I would separate the part about small children at the California Grill into two pieces:
1. Will children be at the Grill if you go? Yes.
2. Should you take children to the Grill? In my opinion, no.
The California Grill is a very nice restaurant in a very lovely setting, plus it ain't cheap. My idea of heaven is a nice relaxed and intimate dinner with my wife, fine food, fine wine, fine company, great view, watching the sunset or the fireworks, depending on your timing. Although I love my DD dearly, she doesn't appear anywhere in that description.
I understand being on vacation and wanting to have the kids along, but in this case I think hard pressed parents would greatly enjoy their absence.