G.W.
We rented a cabin for a couple's weekend in Broken Bow, OK and it was great! Oklahoma is a great place for camping. A lot of my old coworkers used to go to Turner Falls for family trips and they loved it. I looked at some sites that they suggested and I saw one that even rented teepees. Maybe you can read a few books with your little ones about Native Americans and teepees and follow your studies up with a trip to one? Good luck!