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Grant McCartney’s training included tons of travel and one chilly technique

He prepared for season nine by visiting Ninjas all over the country and practicing some unique strategies.

How Grant McCartney got ready for season nine

Ice plunges turned Grant Mccartney into one speedy Ninja!

Posted by American Ninja Warrior Nation on Friday, June 16, 2017

Grant McCartney is known as the Island Ninja, but lately, he’s been earning the title of the Wandering Ninja.

In order to prepare for season nine, Grant traveled all over the country to train with as many American Ninja Warriors as possible.

But he also had another trick up his sleeve. Grant practices controlling his heart rate and breathing in water. Not just the lovely waters of his home in Hawaii. No, Grant likes ICE PLUNGES.

Check out the full interview above.