What do you think the hardest Cross Training workout is? Muscle and Fitness has put together a list of 13 of the most famous ones to give you some ideas. Some of them you can do at your home and others you probably want to do at the box with as many friends as possible!
I personally contributed my 3 favorite workouts to this list. Keep an eye out for one of them in an upcoming workout! 😉
You can find the link here.