i'll vouch for total immersion. i can't float while laying still in water (my legs sink). i could barely swim 2 pool lengths. friend got me the total immersi

i'll vouch for total immersion. i can't float while laying still in water (my legs sink). i could barely swim 2 pool lengths. friend got me the total immersion dvd, there's a series of exercises that help you focus on balanced weight distribution in the water, full body rotation for more efficient swimming motion and easier breathing, etc. the exercises slowly work you into a easy freestyle. i went from basically unable to swim 4 laps to .75km swim in open water in about 6 weeks. not really anything special, its just that a lot of people haven't invested the time into good technique. just like any other skill, follow the pro tips, dedicate some time and you'll get better.