This technique got me through Jr. Lifeguards. I would pretty much immediately get hypothermic in the ocean, turn blue and feel as if I couldn't breathe. I would

This technique got me through Jr. Lifeguards. I would pretty much immediately get hypothermic in the ocean, turn blue and feel as if I couldn't breathe. I would float on my back and "jellyfish" - essentially flapping your arms in sync, sometimes doing a breast-stroke kick with the legs. If the ocean isn't too rough, and you conserve your energy for dealing with waves, this works pretty well.