My family and I enjoyed our visit to the CCC Camp. We went on the 1 hour guided tour. Our guide was very knowledgeable about the camp and the local area. Self guided tours would be interesting, but I don't think we would've gotten as much out of the experience as we did.
My boys learned about many tools that their grandpa and great grandpa used before there was refrigeration, power tools, etc. I learned the magnitude of the CCC program in Minnesota, and found the life and work of these boys very alluring.
My kids complained about going, but both were engaged our entire time there.