It's a baby soul surfer for Bethany Hamilton and husband Adam Dirks.
The professional surfer, whose life story provided source material for the 2011 film "Soul Surfer," announced the arrival of her first child on Twitter.
"Blessed to welcome our son, Tobias, into the world! #astokedmomma," she wrote, sharing a family photo with their baby boy.
She and her Dirks, a Christian youth minister and fellow surfer, wed in August 2013 and the couple competed and placed third on a recent season of CBS' "The Amazing Race." Hamilton lost her left arm in a shark attack at age 13 and spent much of the season exceeding expectations in the globe-trotting reality competition.
Hamilton, 25, surfed throughout her pregnancy and previously said that she wasn't too worried about parenting with one arm.
"I often forget that I have one arm. But when I think about it -- like a squirming baby and changing the diaper -- and just me and this squirming baby could be really challenging," she said. "But I think how I live life now. I just adjust and adapt to different things, especially things that are a lot easier with two arms, and I think there's going to be things that are going to be very challenging with one arm but I'll just have to find my own way to take care of the baby."