I am going to accomplish their #100bySUMMER plan! 100 miles of cardio by June 21st. It isn't just running miles. Biking, dancing, swimming and any intense cardio counts! As a general rule 10 minutes of intense cardio counts as 1 mile. Biking 1 mile=1/3mile. Other rules can be found here.
If you want to follow along with me! To meet the goal, you need to get about 1.7 miles in daily. Totally doable! And don't forget to spice it up with some toning and ab exercises.