What's the best way to do cardio? GETTING OUT INTO NATURE AND ENJOYING YOURSELF! The best cardio - something engaging and invigorating...mountain biking, hiking, rock climbing, walking on the beach are ALL better than watching a TV in the gym surrounded by people grunting at themselves and posing in the mirror :)
Good clean water is very important. check out Gerald Pollack's book "The Fourth Phase of Water" for more on that: http://amzn.com/0962689548/...
www.findaspring.com - find a spring near you and get down on some pure charged water