Clayton and Brittany Cook tied the knot in Ontario on Friday.
They were posing for pictures in a park when Clayton noticed a child in distress in a nearby river.
He jumped in to save the boy from drowning - while their wedding photographer captured the rescue on camera.
The boy appeared to be OK, and the couple says he didn't say a word after he was pulled out of the water.
Eventually, an older sibling took him away.
Photo credit: Hatt Photography