E.P.
I went to WI dells last October. My sister rented a wonderful room (Presidential suite - very cool!) at the Wilderness resort. There were about 12 of us. Our favorite water park was the one with a zero depth pool and wonderful, large tube slides. It also had a nice little park inside the waterpark for little ones. We took a fun trip through the dells on one of the "jet boats" very scenic. They seat at least 50 people and it was our favorite thing that we did... we considered the slower excursion but, after the tour ended, we were so thrilled we chose this one. (You will get wet!) Paul Bunyon's was very enjoyable for our big breakfast together. It helped that we had perfect weather. I know two families who go to the dells every February for a fun weekend - it's a bit of a hike (and I'm in your area) but they say it's worth it. They stay at Wilderness or Great Wolf Lodge. Have fun!