The first CrossFit gym in Mott Haven is working to bring health and fitness to those in the south Bronx.

CrossFit South Bronx is opening its doors every Saturday in January to residents free of charge, giving people an opportunity to find out what the fitness regimen is all about. 

The gym says the free classes are a way they can give back to the borough and help people become healthier.

They invited running groups in the area to come as well and join a different style of fitness.