A heartwarming video has emerged from the US of a man proposing to his girlfriend at a Breast Cancer Walk.

The video, shot on April in Georgia, shows the man surprising his future fiancee - who suffered from breast cancer - getting down on one knee near the finish line.

''After a year of going through breast cancer treatments, my fiance was finally breast cancer free and decided to attend her 1st cancer walk,'' the man later wrote online.

''Little did she know there was more than just a finish line waiting for her at the end.''

''I wanted to propose at the end of her walk to represent that she has finally crossed the line over to true happiness and bliss,'' he added.

++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN EDITED++

After a year of going through breast cancer treatments , my fiancee was finally breast cancer free & decided to attend her 1st cancer walk, but little did she know there was more than just a finish line waiting for her at the end. I wanted to propose at the end of her walk to represent that shes finally crossed the line over to true happiness & bliss.