Can you float on water? without moving any body part?

Your reply is precisely correct. There is one more position as under. Fold your legs in padmasana like, strech your body plan on the water surface with face looking to sky. fold your hand on the chest, Breath comfortably and enjoy floating for whatever time you want too. In your case the legs may start tired after few hours. In the other case you even can go asleep. i shall demonstrate this through video as and when time will permit.

Thank you for that... I really don't think I want to fall asleep whilst floating on water, though! lol.

That's good to know. My sister could always float, but I never could. Now I know how.

We can do it without the help of a live jacket or a float tube or without even moving any of your body part at all.

I have purposly started a discussion in which I dared to ask my friends on mylot about the same doubt, that if I select a response as a best response would you like to respond it still? And surprisingly this discussion recieved so many positive responses saying they don't care the best responce instead they love replying and discussing the topics as they want. In case if the first response is best why to wait more than a week to appreciate him, the late comers normally miss the trains they intend to aboard.