Box Maliciosa Moralzarzal is a training facility in Moralzarzal, Madrid, designed to help people build strength and improve their fitness through varied, coached sessions. Its approach combines personal attention, a welcoming community and training adapted to different abilities, with an emphasis on safe, purposeful progress.

The box offers Cross Training, with strength, technique and conditioning; Hyrox, combining running and functional exercises; Endurance training to develop cardiovascular capacity; and weightlifting focused on Olympic lifting technique, strength and control. Open Box sessions let members train independently using the facility and equipment at their own pace. The 300-square-metre space is described as bright and well equipped.

Members can choose from several class bundles: a monthly pass for one class per day, packages of five, nine or thirteen classes to use within a calendar month, and a ten-class pass valid for a year. All bundles allow reservations across the activities. Box Maliciosa is located at C/ Cañada 9, Local 2, in Moralzarzal, and offers a free trial class.