Checkout the falls at Amnicon Falls State Park
This is a decent park. There are some pretty water falls and campsites are very clean. They all have fire pits with plenty of room for your car or camper trailer. There are plenty of trees for shade. It is a very peaceful setting.
The real positive about this campground is that it is a great setting if you want to pull in your camper and if you prefer to rough it in a tent there is a parking lot and a trail for walk-in campsites.
Checkout Amnicon Falls State Park.