I call BS on this . Nobody swims for miles without being able to float unless they have a floatation assist device ! or they have a jetpack propelling them forward with wings to generate lift . Maybe our definiton of float is different . If you can reposition your bodyretain filled lungs of air enough with some treading to intermittenly get your nose out of the water to breathe , then you can float though technically you are a sinker . For some of us , even doing all that , our entire body still remains completely submerged . Have your swim team stand vertically in water with light treading and full lungs of air , if their entire body remains completely submerged , I will believe the nofloating bs . Otherwise , I don ' t