Leonardo DiCaprio and Nina Agdal join Orlando Bloom during St Barts holiday as they celebrate the swimsuit model's 25th birthday

Orlando Bloom has been enjoying a sun-soaked Caribbean holiday over the past several days.

And on Sunday, the British actor was joined by Leonardo DiCaprio and Nina Agdal as they celebrated the model's 25th birthday.

The 42-year-old actor and his girlfriend hopped on board a boat in St Barts with Orlando, who kept a low profile in a black baseball cap.

Nina Agdal and Leonardo DiCaprio (not pictured) joined Orlando Bloom during his St Barts getaway on Sunday

Nina Agdal and Leonardo DiCaprio (not pictured) joined Orlando Bloom during his St Barts getaway on Sunday

'They were on vacation for her birthday in St. Bart’s on the yacht of a friend who invited them on board,' a source told People. 'They are having fun.'

The Sports Illustrated Swimsuit cover model went barefoot and showcased her long bronzed legs in a black sleeveless romper.

She carried a pair of strappy stilettos in one hand and puffed away on a cigarette with the other.

A crewman assisted the Danish beauty as she climbed onto the vessel in the evening hours on Sunday.

Birthday babe! The Victoria's Secret model joined the British actor for a boat ride as she celebrated her 25th birthday

Birthday babe! The Victoria's Secret model joined the British actor for a boat ride as she celebrated her 25th birthday

Leggy blonde! The Sports Illustrated Swimsuit cover model went barefoot and showcased her long bronzed stems in a black sleeveless romper

Leggy blonde! The Sports Illustrated Swimsuit cover model went barefoot and showcased her long bronzed stems in a black sleeveless romper

Her golden blonde tresses were styled in relaxed waves and swept up in a high ponytail with not a single fly-away in sight.

A small brown leather purse slung across Nina's chest and she skipped all other accessories save for one cocktail ring. 

The hunky Lord Of The Rings star went with a laid-back look in buttoned-down yellow shirt with white tee and black trousers.

Up in smoke: The Danish beauty swept her golden tresses up in a high ponytail as she puffed away on a cigarette

Up in smoke: The Danish beauty swept her golden tresses up in a high ponytail as she puffed away on a cigarette

Low-key look: The Pirates Of The Caribbean star kept a low profile in black baseball cap and wore a buttoned-down yellow shirt with white tee and black trousers

Low-key look: The Pirates Of The Caribbean star kept a low profile in black baseball cap and wore a buttoned-down yellow shirt with white tee and black trousers

The Wolf Of Wall Street star and the Victoria's Secret model were first linked in 2014, and are believed to have rekindled their romance last summer.  

Nina shot to fame after starring in the Carl's Jr. Super Bowl commercial in 2013.

The following year, she graced the cover of the 50th anniversary Sports Illustrated Swimsuit Issue alongside Chrissy Teigen and Lily Aldridge. 

Meanwhile, Orlando has been relaxing in St Barts with Australian model Kristy Hinze-Clark and her husband of eight years, billionaire tech Jim Clark, 72. 

The pair - who tied the knot in 2009 - have been in the Caribbean racing their yacht, according to a rep for Kristy.  

British beach babe! The hunky Lord Of The Rings star has been enjoying a sun-soaked Caribbean holiday over the past several days

British beach babe! The hunky Lord Of The Rings star has been enjoying a sun-soaked Caribbean holiday over the past several days

Perfect pair! The Wolf Of Wall Street star and the blonde beauty were first linked in 2014, and are believed to have rekindled their romance last summer
Perfect pair! The Wolf Of Wall Street star and the blonde beauty were first linked in 2014, and are believed to have rekindled their romance last summer

Perfect pair! The Wolf Of Wall Street star and the blonde beauty were first linked in 2014, and are believed to have rekindled their romance last summer

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