After I hurt my knee, biking and hiking (stair climbing) hurt. I was left with walking and my piece of junk elliptical in the garage. Rowing, that's a pretty good idea. I'll have to get a machine for the winter.Lee, I have a really small gym here at my condo and while there is a multifunction machine, there is no rower. It'll be ok, I'll figure something out. We have a couple different types of bikes and a crappy stair climber (hate this thing) and a treadmill too.