Group sessions must have a minimum of two(2) students registered in order for the lesson to be staffed. Therefore, we may need to move your registered class to a different time slot in order to meet the minimum student requirement. If you are interested in Private lessons, please add yourself to your preferred Private Session wait list as we may have an option to add more Swim Instructors. There are no refunds on cancellations or missed lessons. In order to ensure quality of progressive lessons, make-up sessions are not offered.