Cardiovascular exercise - Anything with is a continual motion of movement which raises the heartrate and is generally more toning than testing.
Its the fun stress-relieving bit which we all love once we get going!!
Grab your towel, and water bottle, hop on a bike and have fun pedalling....that simple!
To mix it up try: 1000m on a bike, 750m on a jogger, then 250m rowing
all at steady pace.
If your going to do any weight/resistance training do that first then cardio after.
After training a few stretches, a walk and an appropriate meal will make it all the more enjoyable.
Variety = smiley
Peace
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... About cardio, I like to do running first thing in the morning, for an hour or two, depending if I want to do fast or slow, fast is short time, slow is longer time, later on the day, I do cardio again, stepping with videos I own, it is only for fun, I like the challenge, it is like double dodge. Eating healthy is important to support this type of activities, I also bike, if I need to commute, which is almost every day, and do weights twice a week. peace 
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