There are several really good RV Parks all around Oklahoma..Canton Lake, north of Watonga, Lake Tenkiller has several as well as state parks, Lake Arcadia, Edmond, some sites on the water, not full hookups, sites further from water has full hoohup. Eufaula Lake has several too. As per JSMagill Cedar Oaks on Grand Lake rally nice. Almost all the casino's either have RV Parks on site or near by, some are near lakes... Hope you enjoy Oklahoma camping, It will get cooler soon, and we will get some much needed RAIN...