We just booked Cassandra Shores on Grand Lake for Sept. 9-13 and are really looking forward to it. My husband grew up in OKC as a child, but the rest of us are East Coasters. We also have access to a pontoon boat for the week. What else is there to do in the area? Places to eat/bars/dancing/festivals? The guys are looking forward to fishing and golfing. What can the girls do within 50 miles? Other than that, looking forward to fun in the sun. What is the normal temperature that time of year?