Typically, open gym is unstructured activity time where the gymnasium is available to students, families, and/or community members to play pick-up sports such as basketball or volleyball, participate in fitness stations, run laps, etc.Typically, open gym is unstructured activity time where the gymnasium is available to students, families, and/or community members to play pick-up sports such as basketball or volleyball, participate in fitness stations, run laps, etc.Typically, open gym is unstructured activity time where the gymnasium is available to students, families, and/or community members to play pick-up sports such as basketball or volleyball, participate in fitness stations, run laps, etc.