Women's Health and Fitness Day is the nation's largest annual health promotion event for women of all ages.
This event is always held on the last Wednesday in September.
This national program focuses attention on the importance of regular physical activity and health awareness for women.
Dale Collison, the Owner of Duluth Crossfit, said "They gain confidence and they walk out and it's pretty awesome to watch a woman do her first pull up."
Duluth Crossfit officials said that 80 percent of their customers are women.
Classes were held there today in honor of the holiday.