Thinking about how to handle your teen during summer break? Here’s one way! Planet Fitness is offering free passes to high school students who want to work out in their gyms this summer. The high school summer pass program offers free memberships for students between the ages of 14 and 19-years-old. The program begins May 15th and runs through the end of August. Teens can sign up for the program online or at a local Planet Fitness.