J.
Hi,
Well I had friends who just got back from the waterpark in Sandusky, Kalahari www.kalahariresort.com which they said was fantastic not only for the older kids but the area for baby's or your 19 month old is the best she's ever seen. We've gone to Traverse City to Great Wolf Lodge, and while the waterpark was nice and the area in the room for the kids if you get a themed room was neat, the bed for the adults was not good at all. The food at GWL also was yucky! The only draw back I could see for Kalahari would be they allow day passes where Great Wolf Lodge does not, you have to be staying there.
What about a road trip (I know gas is expensive)to Chicago during Taste Fest! I've done that many times and it is SO FUN! Lots to do and see in Grant Park, along Lake Michigan, free concerts and tons of food. Plus they have things going on for the kids. But if your going to go, reserve a room ASAP, they fill up FAST and you want to be able to walk to the park. Try getting into a hotel that has free breakfast to cut down on costs.
Good Luck and have a great Vacation!!
J. in Macomb