Losing a child is one of the most difficult things any parent can go through.

Almost a year later, one Sparta couple is still feeling that pain of losing their son who drowned in Lake Lanier.

On August 12, 2016, Troy Harden, 29, was out on the lake with friends.

According to a Department of Natural Resources report, Troy dove into the lake to retrieve something, but never made it back to the boat.

“Later that night, probably about 1 or 2 a.m. when we actually got the call that he had drowned,” his father Troy Harden said.

He says he can't grasp why his son drowned.

“He was a certified lifeguard, and he was a very strong swimmer,” Harden said.

The DNR searched the bottom of the lake for weeks, but couldn't find his body.

“He was a loving person, he was just an outgoing person,” Harden said. “If you ever wanted a son to admire, you would want him to be like Troy.”

Troy had just become a Delta flight attendant, and aspired to one day be an air marshal. His father says he hopes one day his son's body will finally be recovered.

“That would bring some closure,” Harden said. “That's what we’re looking for, closure. If we could find his body, if his body was to come up, that would give us some closure. Sometimes, right now, I think he might still be living to me, because there is no closure.”

Until that day comes, he and his family will rely on God to get through.

“Our faith is so strong,” Harden said, faith that God will one day bring closure to a family that's waiting.

Harden says if his son's body is recovered, they plan to have a proper funeral.