Swimming for cardio?

[FitBlonde]

Is swimming okay for cardio?

[atomic sagebrush]

I think it is fine, but just to let you know, the old school sway gurus advise against swimming because it may raise pH. I personally do not think there is anything to this and if you're worried about it, just use some RepHresh before you go into the water.

[Rosie85]

oh goodness, hats off to you if you can swim for an hour! I would literally die!