Leonardo DiCaprio and Camila Morrone celebrate her 23rd birthday with friends aboard a mega yacht

They’ve been dating for three years. 

And, Leonardo DiCaprio, 45, and Camila Morrone were joined by friends to celebrate her 23rd birthday with a Western-themed party aboard a mega yacht, on Friday.

The Titanic star and his girlfriend, 23, sported cowboy hats as they arrived for the lavish festivities on the 141ft Leight Star super yacht.

Ready to party! The Titanic star and his girlfriend sported cowboy hats as they arrived for the lavish festivities on the 43m Leight Star super yacht

Howdy! Leonardo DiCaprio, 45, and Camila Morrone were joined by friends to celebrate her 23rd birthday with a Western-themed party aboard a mega yacht, on Friday

Leo kept things casual in oversized jeans and a grey hoodie as he strolled along in Nike sliders.

The actor wore a cowboy hat with an upturned rim and opted to wear a face mask, per California regulations. 

Camila donned an indigo denim button up dress and covered up somewhat with an oversized grey hoodie, while carrying her belongings in a basket bag.

With a wide-brimmed cowboy hat atop her head, the model ditched her shoes and walked barefoot towards the yacht where she was greeted by their friends.

Wow! The pair were joined by their pals aboard the 43m Leight Star super yacht

Wow! The pair were joined by their pals aboard the 43m Leight Star super yacht

Low-key: Leo kept things casual for the day in oversized jeans and a grey hoodie as he strolled along in Nike sliders

Low-key: Leo kept things casual for the day in oversized jeans and a grey hoodie as he strolled along in Nike sliders

So stylish! Camila donned an indigo denim button up dress and covered up somewhat with an oversized grey hoodie

So stylish! The model carried her belongings in a basket bag

So stylish! Camila donned an indigo denim button up dress and covered up somewhat with an oversized grey hoodie, while carrying her belongings in a basket bag 

Ready for fun at sea! The group boarded the mega yacht mid-morning, so that they could sail at 11am sharp

Ready for fun at sea! The group boarded the mega yacht mid-morning, so that they could sail at 11am sharp

Low key: With a wide-brimmed cowboy hat atop her head, the model ditched her shoes and walked barefoot towards the yacht where she was greeted by their friends

All packed for the day! Olympic snowboarder Shaun White wore a cowboy hat with his casual attire

Low key: With a wide-brimmed cowboy hat atop her head, the model ditched her shoes and walked barefoot towards the yacht where she was greeted by their friends 

Their pals appeared to enjoy getting involved with the theme, wearing cowboy hats, denim, and other country classics. 

Camila’s pal Nina Dobrev and her beau Olympic snowboarder Shaun White joined in on the fun, along with actors Kevin Connolly and Lukas Haas. 

The group boarded the mega yacht mid-morning, so that they could sail at 11am sharp.  

Fun times: Nina Dobrev and Shaun White couldn't have looked happier aboard the yacht

Fun times: Nina Dobrev and Shaun White couldn’t have looked happier aboard the yacht

Smile! The group huddled together for a photograph aboard the yacht

Smile! The group huddled together for a photograph aboard the yacht

Happy days: Camila smiled as boyfriend Leo larked about in the sunshine

Happy days: Camila smiled as boyfriend Leo larked about in the sunshine

Looking good: Nina Dobrev rocked a Friends hoodie and coordinating joggers

Follow the leader: She was followed aboard the boat by her beau Shaun

Looking good: Nina Dobrev rocked a Friends hoodie and coordinating joggers as she was followed aboard the boat by her beau Shaun

Howdy: Leo waved to their pals as he and Camila stepped aboard

Howdy: Leo waved to their pals as he and Camila stepped aboard

Birthday girl! Camila showcased her natural beauty during their day at sea

Birthday girl! Camila showcased her natural beauty during their day at sea

Everyone enjoyed a full day of food, friends and fun, returning back to the marina around 4:30pm, according to Page Six

Leo and the Camila have been together since 2017, but only made their red carpet debut during the 2020 Academy Awards. 

It was the first time the Wolf of Wall Street star brought a date to the show since bringing his ex girlfriend, Gisele Bundchen in 2005.  

Catch ups: Leo chatted to Kevin Connolly and other pals, who all appeared to be in good spirits

Catch ups: Leo chatted to Kevin Connolly and other pals, who all appeared to be in good spirits

Close friends: Leo stood at the back of the gathering for a group snap

Close friends: Leo stood at the back of the gathering for a group snap

Beers aboard! The party guests drank beers aboard the boat while soaking up the sunshine

Beers aboard! The party guests drank beers aboard the boat while soaking up the sunshine

Here we go! Some attendees donned full-on cowgirl inspired attire

Here we go! Some attendees donned full-on cowgirl inspired attire

Cute! Nina and Shawn couldn't take their hands of each other

Cute! Nina and Shawn couldn’t take their hands of each other 

According to reports, Camila and Leo have been enjoying the past few months of lockdown together in his Hollywood home, and have even adopted a pup together.

‘They’re always together, but like maintaining privacy,’ a source told Us Weekly recently.  

They continued: ‘They’re really great for one another and have been enjoying this time together off the grid.’ 

Looking good: The pair were coordinated with hoodies and cowboy hats

Looking good: The pair were coordinated with hoodies and cowboy hats

The look of love: Nina loving glanced at her beau as they boarded the yacht together

The look of love: Nina loving glanced at her beau as they boarded the yacht together

Get low: Some of the guests crouched down for a photograph

Get low: Some of the guests crouched down for a photograph

Perfect party: The group of friends enjoyed the relaxing day at sea

Perfect party: The group of friends enjoyed the relaxing day at sea

While they have a 23-year age-gap, that hasn’t seemed to affect the highly private couple. 

Camila briefly spoke about the haters who talk about her relationship saying the age-gap didn’t bother her at all. 

‘There’s so many relationships in Hollywood⁠—and in the history of the world—where people have large age gaps,’ she told The Los Angeles Times late last year. 

‘I just think anyone should be able to date who they want to date.’ 

Saddle up: Nina and Shawn carried their belongings in large holdalls

Sun's up! The duo shielded their eyes with retro shades

Saddle up: Nina and Shawn carried their belongings in large holdalls

Happy lady: Nina flashed a wide smile as they finally climbed aboard the deck

Happy lady: Nina flashed a wide smile as they finally climbed aboard the deck

Doin' it for the gram: Their guests were keen to capture the day in photographs

Doin’ it for the gram: Their guests were keen to capture the day in photographs

Designer duds: Shawn's belongings were packed into a large designer holdall

Designer duds: Shawn’s belongings were packed into a large designer holdall