Whoa!!
What is the best way to ask somebody to swim? Or to force urself to swim regularly? 
I think the best answer i’ve at moment is ask them to sign for Marathon run…or u sign up for a Marathon run, or even half of Marathon…that’s 21 km….
Just undergoing training for half Marathon on Tue …did my 3X300 m at my top speed…and yah….today my whole body is aching…..:D, because i didn’t do any recovery exercise which swimming was suggested as the best. =)
So yah, do u choose the swimming or aching body on ur 2nd day?
i think i’d rather force myself to dip into the pool!