Cara Delevingne rang in her 30th birthday in style on Friday as she joined a plethora of A-list pals on a lavish yacht trip Formentera, Spain.

The model let her hair down when she changed into a navy swimsuit, and then slipped into what looked like a bowl of frosting as part of the seaside celebrations.

Cara had a great time with Sienna Miller (44) who was also on her trip. Margot Robertbie (32) was snapped cooling down in the Mediterranean.

Celebrations: Cara Delevingne rang in her 30th birthday in style on Friday as she joined a plethora of A-list pals on a lavish yacht trip Formentera, Spain, with the star seen tucking into frosting

Fun times: The model certainly let her hair down as she slipped into a plunging navy swimsuit and tucked into what appeared to be a bowl of frosting during the fun-filled celebrations at sea

Celebrations: Cara Delevingne rang in her 30th birthday in style on Friday as she joined a plethora of A-list pals on a lavish yacht trip Formentera, Spain, with the star seen tucking into frosting

The birthday girl looked to be having the best time as she smeared frosting over her lips and playfully tried to rub it on her pal Adwoa Aboah.

Cara displayed her models figure in the swimwear which she paired with tiny denim shorts featuring black patches at the back. 

The blonde beauty pulled her hair into a ponytail, with pink scrunchies and silver chains. She also wore black sunglasses. 

Stunner: Cara was in good company as among her famous friends on the trip was Sienna Miller, 40, who looked incredible in a brown bikini

There she is: Margot Robbie, 32, was seen cooling off amid a refreshing dip in the Mediterranean

Stunner: Cara was in good company as among her famous friends on the trip was Sienna Miller, 40, who looked incredible in a brown bikini

The best part: The blonde beauty was in her element as she happily licked frosting off a spatula

It was the best thing about this: She happily took frosting off of a spatula.

Cheeky! The birthday girl looked to be having the best time as she smeared frosting over her lips and playfully tried to rub it on her pal Adwoa Aboah

Almost got you! Cara was seen leaning into Adwoa as she attempted to smear her with frosting

Cheeky! The birthday girl looked to be having the best time as she smeared frosting over her lips and playfully tried to rub it on her pal Adwoa Aboah

Playtime: Cara couldn't resist wiping frosting on Adwoa as they larked about together

Playtime: Adwoa and Cara had to lick frosting off each other as they sat together.

Meanwhile, Sienna showed her amazing figure in a skimpy chocolate two-piece, which she accessorised with tortoiseshell and gold earrings. 

She was not only displaying her physique, she was also demonstrating her amazing diving skills by plunging into water. 

Joining them on the trip was Cara’s older sister Poppy Delevingne, 36, who looked sensational in a pink crossover bikini adorned with palm trees. 

Flaunt: Cara showed off her model figure in the swimwear, which she teamed with a pair of tiny denim shorts with black patches on the back

Oh dear: The star spilled frosting down her costume following her shenanigans

Flaunt: Cara showed off her model figure in the swimwear, which she teamed with a pair of tiny denim shorts with black patches on the back

Details: The beauty swept her blonde tresses up into a scruffy ponytail held with a pink scrunchie, while she accessorised with a silver chain and black sunglasses

Details: The beauty swept her blonde tresses up into a scruffy ponytail held with a pink scrunchie, while she accessorised with a silver chain and black sunglasses

What a day: Amid the boat trip, the group headed to a restaurant on land where the celebrations continued

Wow! What an amazing day. After the boat trip, they headed for a land restaurant where celebrations continued.

On dry land: The model was seen larking around with a pal as everyone gathered in the eatery

At dry land: A model can be seen playing with her pal while everyone gathers in the cafeteria.

Gesture: A plethora of companions flew out to Spain to help her mark her milestone year

Gesture

It's my party: Cara indulged in the snack as her pals watched on

Missed a bit: A friend was seen wiping frosting off her

It’s me party! Cara enjoyed the snack while her friends watched.

Having a ball: The group swapped their boat for a lovely Spanish eatery amid the celebrations

A great party: The group exchanged their boat for a delicious Spanish meal during the celebrations.

Margot was seen wearing a mismatched bikini. It had a blue top with white bottoms. 

Lady Mary Charteris, 35 (with a few other buddies), joined Cara on the excursion in order to commemorate her 30th anniversary. 

Last month, Cara revealed the importance of representation in her industry after she starred on the cover of British Vogue.

Good times: The Paper Towns star looked in the mood to party

It was good times! The Paper Towns star seemed in the spirit to party

Got you! Another friend seemingly tried to get frosting on Cara amid the festivities

Retaliation: The star didn't look too impressed with her pal's antics

That’s right! A friend tried frosting Cara’s face during the celebrations.

Nice: The beauty showcased her figure in the blue swimwear which had gold chain detailing

It was nice: This beauty showed off her body in the blue swimwear with gold chains detailing

Catwalk Queen: Cara showed off her slender physique in her swimsuit and shorts combo

Cara is the catwalk queen: Cara showed off her slim figure in her combination of swimsuit and shorts

Living her best life: The film star put on an animated display in the eatery

Live her best life. The movie star gave an animated performance in the restaurant

Loving it: She certainly knew how to have a good time as she marked her 30th year

Loving it: She certainly knew how to have a good time as she marked her 30th year

It’s a love: As she celebrated her 30th birthday, it was clear that she loved having a great time.

What's going on here? Things got a little rowdy at the frestaurant

Was there anything strange going on in this place? The frestaurant got into a bit of a row.

Jolly good time: Cara was in a very playful mood on her birthday

Besties: She larked around with Adwoa who also turned 30 this year

Cara had a great time celebrating her birthday.

Gathering: The group chatted and mingled during the lunch date

Gathering: During the lunch date, everyone chatted and interacted with each other.

Look over there: The model was in very high spirits for the occasion

You can see that the model looked very happy for this occasion. 

She spoke to the newspaper about how important representation is to her. 

It’s important to remember that the entertainment industry is meant to keep up with what’s happening in the world.

“And in order to lead, we must represent different types of people. When I was growing up, I did not see many people similar to me. It’s a great privilege to represent the people I love.

Wow: Meanwhile, Sienna showed her amazing figure in a skimpy chocolate two-piece, which she accessorised with tortoiseshell and gold earrings

Wow: Meanwhile, Sienna showed her amazing figure in a skimpy chocolate two-piece, which she accessorised with tortoiseshell and gold earrings

Having a ball: Sienna looked in good spirits as she mingled with pals on the vessel

It was a good night: Sienna seemed to be having a great time as she socialized with her friends aboard the vessel

Protection: Sienna also covered up with a large checked hat

Protection: Sienna also wore a big checked hat

Chilled: Sienna looked nice and relaxed as she kicked back on the boat

Chilled: Sienna was relaxed, looking great as she laid back on her boat.

She answered a question about her “coming-out story” and said, “It is hard to say it was a coming out story because I never came out.” 

It was more than that I had decided to open my eyes and declare, “I’m in Love, I’m In Love with Whom I Am in Love With.” It did not feel like I was conscious of my decision to leave.

It was a way to say that I wasn’t ashamed of my past. It was time to stop being embarrassed about who and what I love. I was done with being ashamed of who and what I loved.

Look at her go! As well as displaying her figure, the actress also showed off her impressive diving skills as she was seen plunging into the water

You can see her going! She was not only showing off her physique, she was also showing her amazing diving skills by plunging into water.

What a dive! Sienna was on fine form as she expertly dived into the sea

Wow! Sienna looked great as she dived in the water.

Cooling off: The Layer Cake star couldn't wait to dive into the refreshing water

There she goes: She certainly made the most of her time on the yacht

Cooling down: Layer Cake star, who couldn’t wait for the refreshing water to plunge into 

Up she goes: Sienna was seen being hauled back onto the yacht

Sienna was seen being retorted onto the yacht.

Easy does it: After her swim Sienna was seen making her way back onto the boat

Simple, right? After swimming Sienna made her way back to the boat.

Up you get: Sienna carefully and steadily climbed up the steps back to the deck

It’s up: Sienna carefully, steadily, climbed up to the deck.

Hot stuff: She still looked amazing as she emerged from the water dripping wet

All aboard: Sienna got some assistance from a crew member as she made her way back on deck

Hot stuff. She was still stunning when she emerged from the water, getting dripping wet.

Havig a laugh: Poppy appeared amused by Sienna's venture into the sea

Havig has a laugh. Poppy was amused by Siena’s expedition into the water.

Where's my towel? The film star seemed keen to try off as she settled back onto the boat

Is there my towel? She was eager to get back in the water, as did her film star.

It comes after last week, Cara appeared on Live With Kelly And Ryan in New York City, where she said that she was getting a new tattoo for her 30th birthday which falls on August 12. 

The inking is a tribute to the 1990s singer Alanis Morissette, who was 48 years old at the time and had an enormous success with Jagged Little Pill’s 1995 album.

“I love Alanis’ work. I’m completely obsessed. I visited her again in London, and she had me write an “ironic” message in her handwriting, so that I can get it tattooed,” said the cover girl.

Looking great: Joining them on the trip was Cara's older sister Poppy Delevingne, 36, who looked sensational in a pink crossover bikini adorned with palm trees

Looking great: Joining them on the trip was Cara’s older sister Poppy Delevingne, 36, who looked sensational in a pink crossover bikini adorned with palm trees

Sensational: Poppy looked happy and relaxed as she soaked up the sun with fellow model Adwoa

It was sensational! Poppy looked relaxed and happy as she took in the sun along with Adwoa, a fellow model

There she is! Actress Margot sported a mismatched bikini, with a white bikini top and blue bottoms

She is indeed! Margot was wearing a mismatched bikini. It had a blue and white bottom, as well as a white bikini.

Work it: While model Adwoa, 30, looked amazing in a sparkly pink bikini

You can do it! Adwoa (a 30-year-old model) looked incredible in a sparkling pink bikini

Party people: Cara's pals were out in force ahead of the weekend

The party people: Cara’s friends were there in large numbers before the weekend

After the appearance, Cara shared a picture of her legs which displayed signs of psoriasis plaques, which appear as raised red patches, having previously spoken out about her battle with the skin condition, that causes flaky patches of skin which form scales.  

Psoriasis is characterized by an increase in the production of skin cells. It can develop at any age but it most commonly affects adults aged between 20-30 years and 50-60 years. This condition affects both men and woman equally. 

Cara was a model at the peak of her career in fashion, walking on 53 runways per Fashion Week. This left her in constant depression.

Company: Lady Mary Charteris, 35, and a selection of other pals also joined the excursion to help Cara celebrate her milestone 30th year

So chic: Lady Mary wowed in a red bikini with a pink floral trim, which she teamed with black denim shorts and a matching waistcoat

Company: Lady Mary Charteris, 35, and a selection of other pals also joined the excursion to help Cara celebrate her milestone 30th year

Looking good: Cara's pals donned their best bikinis for the boat trip

Cara’s friends looked great in their bikinis during the boat ride

Feeling a little nauti: The ladies looked incredible in the swimwear

It was a bit nauti! The swimwear looked amazing on the ladies

Taking the sea-nic route: Cara and her party were joined by some security guards for the trip

Cara took the ocean-nic route. Cara and her group were joined by security guards.

Let's go! Cara's companions were living their best life on the yacht

Seas the day: The group were taking in the sights

Let’s go! Cara’s friends were enjoying the most fulfilling life aboard the yacht

Cara showed her stunning figure in a bright yellow bikini

Glam: Another friend donned a stripy, colourful number

Glam: An additional friend chose a colorful, stripy outfit

Getting into ship shape: The group were seen paddle boarding on the Mediterranean

Get into shape! The group was seen paddling boarding in the Mediterranean. 

Strike a pose: Cara reclined back on the board while she snapped a selfie of herself

Take a picture of yourself: Cara sat back on the board and took a photo.

Picture perfect: Cara ensured she captured a memory of the special day

Perfect: Cara captured the moment in perfect photos

Uh oh! She was then thrown into the water by one of her male companions

Down they go: The duo plunged into the water together

Uh oh! The male companion tossed her in the water. 

Getting the best shots: Cara protected her mobile wit a waterproof phone case

Cara secured her smartphone with a waterproof cover to capture the best photos

Chill and relax: The star looked very much at home on the sea

Enjoy the calm and relaxation: The star appeared very comfortable at sea.

This punishing lifestyle led to the development of painful skin conditions, which she had to cover up with thick makeup.

‘People would put on gloves and not want to touch me because they thought it was, like, leprosy or something,’ she recalled  in 2015.

According to her, it wasn’t a great time. She was fighting for survival for several months. You were always on edge. You can also have a negative outlook on yourself. It makes you more miserable. 

Oh what fun: Cara and her pals were certainly having a great time on the lavish yacht

What fun! Cara and her friends had a lot of fun on this luxurious yacht

Feeling it: Cara looked a little weary from all her partying

Cara was feeling it. She looked tired after all of her partying

Party time! A whole host of Cara's pals joined her on the yacht to mark her big day

It’s party time! To celebrate her special day, a whole bunch of Cara’s friends joined her aboard the yacht.

Good times: Her friends, including Margot Robbie (centre) donned their swimwear for the fun boat trip

This is the life: The group happily chatted away

Great times: Margot Robbie (center) and her friends donned their swimwear on the trip.

Holiday: Barbie star Margot took a break from her busy schedule to holiday in Spain

Holiday: Barbie Star Margot took time off from her hectic schedule to go on holiday in Spain

What a treat: Cara treated her companions to a lovely day out on the luxury yacht

It was a wonderful treat! Cara and her friends enjoyed a day on the luxurious yacht.

Water load of fun! The group tried their hand at water sports as they larked about in the sea

A water load of enjoyment! As they played in the water, the group also tried out water sports.

She's the birthday girl: Cara was right in the centre of all the fun

Cara, the birthday girl was at the center of the celebrations.

Feeling the chill: The group made the most of the trip as they plunged into the refreshing water

Different: One girl timidly climbed down the steps while another jumped straight in

Feeling chilled: As they plunged into the cool water, the group enjoyed the experience to the fullest.

Woah! One lady made the leap of faith as she jumped off the side of the yacht

Woah! Wow!

Mind the gap! Sienna and her pals were seen being transferred back to the bigger vessel after their restaurant trip

Big jump: The actress showed off her toned legs as she took the leap

Pay attention to the gap Sienna with her companions was seen getting transferred to the larger vessel following their meal trip.

Right this way: The ladies were given a helping hand onto the bigger boat

This is how it worked: Ladies were helped onto the larger boat.