Aka Icehouse or Klickitat Springs
I didn't stay here, but I did get to see this place when I took out rafting here. I wanted to comment since I had previously tried to find info on this campground (I searched for Icehouse Campground based on intel in Soggy Sneakers). This is a great spot right on the Klickitat River and has several spots spread out with fire rings. There aren't designated spots. All you need is a Discover Pass. :)
Month of VisitJune