Examiner.com: SwiMP3 X18 Review
I’m a big fan of cross training. Yes, you have to get your legs and upper body muscles in shape, but it’s good to occasionally trade off with biking or swimming, for example. I’m not a big swimmer, although I scuba dive. Most of the “swimming” when on tanks is aided by fins. I can do the breast stroke but stink at the freestyle, thus I’ve not even attempted a triathlon.