Jacob Elordi‘s letting his cares melt away under the warm Italian sun … flaunting his six-pack alongside girlfriend Olivia Jade Giannulli — all while some back in the U.S.A. are blasting his recent casting in “Wuthering Heights.”

The actor and his GF his the Italian coast with her family … and, clearly he enjoyed the refreshing blue water in the Mediterranean — launching himself off the boat and into the surf repeatedly.

He’s dripping wet in most of these pics … flaunting his six-pack in just a pair of navy blue shorts while his better half seemed to mainly stick to the shore and the ship.

She’s tanning in a lavender-colored two-piece bikini … brushing her hair and stretching out beside her man on the deck.

Not a ton of outright PDA here — after all, OJG fam’s on the ship with them — but, there are a lot of flirty moments between the two on the vacation.

The two look unbothered on their European excursion … so, it seems the controversy surrounding Elordi’s upcoming turn as Heathcliff from the classic romance novel “Wuthering Heights” isn’t getting to him.

ICYMI … Elordi has been cast alongside Margot Robbie for the film adaptation of the book — preparing for a UK shoot in 2025. The casting got people up in arms ’cause the book describes Heathcliff as a “dark-skinned gipsy” who was abandoned as a baby in Liverpool, a well-known slave port back when the novel was written.

So, people have always kinda assumed Heathcliff was Black — which JE obviously isn’t. Worth noting, the book’s author Emily Brontë never comes out and says it specifically … but, still, some people ain’t happy about the casting.