The fastest way to give a space separation and privacy is by adding a screen like this one. It's made of a semitransparent polyester weave fabric that allows light and air to pass through. Note that it's not opaque—if you want complete and total privacy, this screen won't do the job. The screen is easy to relocate and folds up for storage.
By the pool, the screen can give you a sense of separation and function as a shade when the setting sun gets in your eyes. Or maybe you have a business and need to screen off an area—this is an easy solution.
The privacy screen stands 72 inches tall, 54 inches wide, and is 1/2 inches thick. Each section is 18 inches wide. Weighing 25 pounds, most people are able to carry easily. Screen material is PVC-wrapped polyester. The powder-coated steel frame resists rust (steel is prone to rust over time with exposure to the elements—powder coating helps stave that off). To maintain finish, periodically apply wax. Bring indoors in inclement weather. Needs assembly.