Stayed here while barreling across Oklahoma, tent camping. I was able to reserve the last walk in site (Saturday of 4th of July weekend) around 8pm. You can reserve online thru recreation.gov. All sites are for RV or tent, and there was only one other tent camper. There’s not a lot of privacy (which is the only reason I knocked a star) but it’s right on Kaw lake, is clean and all maintained, and even has showers.