Surfing and snowboarding are fantastic workouts, but they have some specific requirements -- namely, waves and snow. And sure, you can always skateboard, but what if you're ready for a new challenge? You just might want to look into Freeline Skates.

The creators of Freeline Skates are serious about sports like these -- sports that get them "charged up." The website says, "Freeline Skates are a testament to the awesome potential of each of us." Not only are they a fun way to get your adrenaline pumping, but they also do a fantastic job of working your inner thighs and ankles.

What's cool is that these skates have lots of possibilities, as shown on the site's video page. Even though they incorporate many of the moves you'd use in the sports mentioned above, they're definitely unique.

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