Insane Cardio Workout Challenge - Hardest FB Workout Yet? Climbing the Mountain

Is this the hardest Fitness Blender workout yet?
Calorie burn info & printable routine @ http://bit.ly/1uDESOD
Lose 16-24 lbs in 8 weeks with our Fat Loss Programs & Meal Plans @ http://bit.ly/13EdZgX
Keep up with us on facebook @ http://on.fb.me/1nLlLwY Instagram @ http://bit.ly/LeZwmC Google+ @ http://bit.ly/1clGvI3 twitter @ http://bit.ly/1BnC8cm Pinterest @ http://bit.ly/1xvTt3s

We use PowerBlock's adjustable dumbbells, find them @: http://bit.ly/yDWK7V

Note: All information provided by Fitness Blender is of a general nature and is furnished only for educational/entertainment purposes only. No information is to be taken as medical or other health advice pertaining to any individual specific health or medical condition. You agree that use of this information is at your own risk and hold Fitness Blender harmless from any and all losses, liabilities, injuries or damages resulting from any and all claims.