Someone looks like he's having a blast!
The Instagram pic shows the father and son enjoying themselves in a pool overlooking the ocean and was captioned, "Fly baby."
The expression on little Duke's face is priceless as his dad tosses him in the air above the water.
A second photo was posted showing the duo snuggling up to one another after their fun in the pool.
Bill is seen holding his son and smiling as Duke appears to have sand all over his hands.
"Vacation smiles #myboys #mexico #funandsun," the E! News host wrote alongside the precious family picture.
The Rancics seem to be enjoying their time off and catching up on some much-needed rest and relaxation by the beach!
And after all, they've got a jam-packed schedule ahead of them to prep for!
Giuliana & Bill moves to E! with a brand-new season starting on April 1, and it promises to be their biggest and best yet.
Fans of the hit show will see the couple face some tough decisions as they navigate the next steps in their lives. Like, will they have another baby? And will they make Chicago their home base? Only time will tell!
Catch the season premiere of Giuliana & Bill on E! Tuesday, April 1 at 8/7c!