K.S.
KW is a lot about parting and bars. I would not leave the kids at home though. They will like the pier at Sunset. They have cats that perform tricks and other street performers. You can't really drink the water there bottle water for the most part. I'd stay in a resort if you go so you have the pool for the kid. It stays up late at night type of place. Are you driving down? Then there are kid friendly areas. If you stay in Marathon area thre is key colony, Penny camp, the marine institute. Its more of a relaxing by the pool and enjoying the weather kind of place. Not cheap though.