Bobby Cannavale Debuts Full Photo of Son Rocco to Celebrate His First Birthday: 'My Beautiful Boy'

The 45-year-old actor shares a sweet father-son moment on Instagram.

Bobby Cannavale and Rose Byrne are finally showing off their adorable son, Rocco!

The 45-year-old actor celebrated Rocco turning one on Tuesday, by debuting the first full pic of his son's face on Instagram.

WATCH: Rose Byrne Poses for 'Playboy' Just Months After Giving Birth

"Happy Birthday my beautiful boy #therock #1," Cannavale wrote next to a sweet snap of father and son on the beach in New South Wales, Australia.

MORE: Rose Byrne’s Breast Milk Has Been Confiscated by the TSA

The family of three has been spending time in Byrne's home country , and from the looks of Cannavale's recent Instagram posts, they’re having a great time down under.

Though Rocco only made one appearance on his father's Instagram page, Cannavale shared a video from their visit to the zoo, and a snapshot of a special container of Vegemite bearing the baby's name.

Rocco is Cannavale's first child with the 36-year-old Neighbors star. The Vinyl star also has a 21-year-old son, Jake, from a previous relationship.

See more on the birth of baby Rocco below.