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The World’s Most Insane Races (that you’ll want to try)
There was a time when running a marathon or competing in an Ironman Triathlon was extreme enough. Not anymore! In the never-ending quest to go farther and be better a new crop of extreme endurance races has hit the scene. They may sound crazy, and they’re definitely grueling, but you’ll probably want to try them! (Just be sure you train first!) Great Wall Marathon Forget 26.2 miles, the Great Wall Marathon challenges participants to tackle 5,164 steps. By comparison, the Empire State Building Run-Up boasts only 1,576 stairs. This run has a full marathon, half-marathon and fun 5K optio..
Cardio Alternatives for People Who Hate Running

Some people naturally love running, others suffer through it, and some people flat out hate it. For that last category, everyone who says “if you do it enough you’ll start to like it” is a liar. When you hate running, no amount of suffering through it makes it an enjoyable experience.

If that’s you, don’t despair, you’re not alone. Instead of giving up on cardio (not a good idea) start exploring alternative cardio exercises until you find one that you actually like.