cardio for winter

[kashra]

Guys..
I just want to ask a question from all of you what do you think which cardio exercise is best for winter season..
i know swimming is best cardio exercise but its little hard in winter so give me suggestion which exercise should i do now a days..???
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[asooneyeonig]

anything that gets your heart rate elevated for an extended period of time.

it could be swings, turkish getups, any exercise using the tabata protocol, jumping rope, carrying heavy things, shoving a 125ft driveway (like mine lol) as fast as you can, etc