The two-time heavyweight champion of the world, 30, is enjoying some well-earned downtime after recapturing his belts from Andy Ruiz Jr last month.
Joshua strolled the sandy beaches with his lady friend and held her arm as they shared a laugh next to the glistening sea.
The boxing king is spending quality time with family in the Caribbean.
He also posted a photo of himself around the dinner table with the caption: “Relax with the queens of the family.”
And there was more fun and games on dry land as the 30-year-old Brit hi-fived a tiny monkey and said hello to some children on vacation at the same time.
Joshua could be forgiven for letting himself go – but the ex-Olympic champ looked the picture of health and fitness as he relaxed in some blue swimming trunks.
Earlier in the trip he got to grips with a jet ski and burst through the waves before posing for a selfie with Dragons Den star Peter Jones.
AJ – who had son JJ with dance teacher Nicole Osbourne – is already gearing up for another huge year as he attempts to defend his titles as well as unify the heavyweight division.
After he exacted revenge in Saudi Arabia, the star was immediately confronted with TWO mandatory challengers in Kubrat Pulev and Oleksandr Usyk.
Joshua said that he wants to finally take on Tyson Fury and Deontay Wilder next year and thinks he can beat them both.
But he revealed he would prioritise a meeting with the Bronze Bomber over the Gypsy King in his bid to become undisputed champion.
Fury and Wilder will fight for the second time in February, with the American aiming to hold on to the WBC strap.
Speaking on the Graham Norton show, Joshua was asked which of his rivals he would prefer to face next, and replied: “I really don’t know. Either one of them, it doesn’t matter.
“The preference would be the champion Wilder because it’s a championship fight, but Fury is so talented as well and it’s the best of British so why not? I’ll fight either one of them.
“The dream would be to go for the fifth belt in 2020.”