Sharing personal photos of himself enjoying the sun and surf with the boys on his Web site, Martin, 37, says that fatherhood "feels amazing."
"I'm so happy! Everything they do, from smiling to crying, feels like a blessing," Martin says of his 1-year-old twins. "This has been the most spiritual moment in my life."
(Scroll down for another photo of the adorable trio.)
For even more images, visit PEOPLE's Celebrity Baby Blog.