Hotworx is set to open July 11 at The Realm at Castle Hills in Lewisville. Hotworx is a fitness studio that offers members unlimited, 24-hour access to virtually instructed infrared sauna workouts. Some of these workouts include hot yoga, hot Pilates, hot cycle and many more. Hotworx will be located at 4622 Windhaven Parkway, Ste. 300, Lewisville. 469-991-0072. www.hotworx.net/studio/lewisville-castlehills