H.J.
We have stayed at the Kalahari (great for older kids...I wouldn't suggest if they are under around 7yrs cause they wont be able to do anything) we have three kids 5yr 3yr and 9mo and we loved staying at the wilderness, we just did in October and it is so friendly for this age range, so much they could do and we could do as adults, there is a good mix of options. I actually have never been to the dells in the summer I do the cheep winter tickets and have all the fun inside, but it is a lot of fun.