Preschoolers ages 3-5 enter this level once they have SUCCESSFULLY completed PRESCHOOL 3 will gain some independence in deep water. They will practice jumping into deeper water (including getting out by themselves), sideways entries, and opening their eyes underwater. These swimmers in training will work on completing 5m of front crawl in their lifejackets and work on their ability to tread water. - Swimmers are evaluated based on "Must-Sees" and progress to Preschool 5 once all criteria has been successfully completed.