Even though the address here says this is in Massachusetts, this attraction is in Stoughton, Wisconsin.
We have 10 year old children and this was the perfect summer day location. It is all sandy beach and the water is clean and cared for. There all kinds of inflatables and slides in the lagoon with plenty of shade when needed. There is a snack bar and clean restrooms. Plenty of people but not crowded.
We had to go back a second day on the demand of our children. Very inexpensive, just a few dollars for each.