I was at that Cape Coral park just the other week. They're right next to a youth center so most days it's packed with little kids. If you're going this week they start spring break to make matters worse. It's prefab and in all honesty not that great. Expect something like this.
If you're up for a drive, I can recommend the park about an hour north in Englewood. You're already in the area so like reptar said, visit the Naples park too.