If you are ever in Oklahoma City or live there...check out the Wheeler District. It is a more laid back park area without a play ground. Some people bring pets or play games like frisbee.
There is a ferris wheel so be sure to check the website for update hours and pricing. There are hammocks, merchandise for sale, concessions and picnic tables.
Some photographers enjoy doing photo shoots here and is a trail bike riders and walkers frequent. This district is home to residential areas as well; it is not far from downtown Oklahoma City. I can get to Bricktown in about ten minutes from the Wheeler District.
I love Oklahoma City and this a great addition. A little low key for my son but he loved the swings pictured above and enjoyed his very first ferris wheel ride. You can even purchase a day pass to ride more than once. If it is not busy; you can ride a few times it seemed.