Jessica Alba slips back into her Blue bikini

Jessica Alba slips back into her  Blue bikini (eight years and two children later) and looks better than ever in St Barts 

She became famous for her incredible bikini body in the 2005 underwater action movie Into The Blue.

And eight years - and two children - later, Jessica Alba has slipped back into a similar sky blue swimsuit while on holiday in St. Barts, in the French West Indies.

She proved that she still has the same amazing figure, despite giving birth to two kids in the interim.

The 31-year-old flaunted her perfectly toned body as she took a dip in the warm Caribbean ocean on Thursday with her husband Cash Warren.

Back in the blue bikini: Jessica Alba showed off her incredible figure while taking a dip with husband Cash Warren in St. Barts on Thursday and right, starring in the 2005 action film Into The Blue

Watch out for the wave: The star checked behind her before walking out of the surf

Athletic: The 31-year-old revealed her curves in a sporty two-piece, which consisted of orange bottoms and a blue bikini top 

Couple fun: Jessica enjoyed the swim with her husband Cash Warren, who looked pleased to be seen with his beautiful wife 

The Machete Kills star looked flawless in the sporty two-piece, which consisted of orange bottoms and a light blue bikini top with orange straps.

She appeared to be having a ball as she laughed while splashing around in the sea. 

At one point she was seen standing in the thigh-level water, squeezing out her long wet hair.

That was fun: Jessica grinned as she walked back to her towel on the beach 

Squeezing it out: Jessica was seen pulling her hair back as she made her way out of the water 

Catching rays: The actress indulged in a spot of sunbathing as she dried herself off on a jetty

Out of the blue: The star emerged from the sea to relax on a pontoon

Where's a ladder when you need it! Jessica did her best to get on board gracefully 

Sun lover: The actress soaked up the rays

The actress then opted for a spot of sunbathing as she reclined on a jetty, stretching out her long toned legs.

She sat up cross-legged at one point, soaking up the sun while showing off her enviably toned tummy.

After having two children Jessica's incredible body has not been an easy achievement. The actress followed a strict diet and fitness regime.

Flawless: The mother-of-two flaunted a completely flat, taut stomach and toned arms as she squeezed the water out of her hair 

Like a model: Jessica stretched out her long legs as she reclined on the jetty 

This is the life! Jessica took in the spectacular surrounds

Big wave! The star smiled at her family from

Giggles: She was in great spirits as she relaxed on holiday

She once said: 'Working out every day for even just 45 minutes is good for my mental state.

'Getting dressed and actually doing it is the worst. It's hard to get motivated.'

'In the gym, I have like five things to distract me: TV, iPod, magazines. Working partners are good, too, so you can chat and not just drown in your own misery. Sorry, does that sound bad? I just hate working out.'

Is it cold? The actress dips a toe in the water after drying off in the sun

Be careful: The actress almost lost her footing as she emerged from the warm water 

Attentive wife: Jessica stroked her husband's back as they lounge with friends on the jetty

After giving birth to her first child she then also stuck to a strict meal-plan which was delivered to her house.

'I have a hard time with portion control, so I have 1,200 calorie meals delivered. But I also work out, so basically I’m starving—it sucks. I drink a lot of water.'

After her fun in the water, she was seen walking out the surf with Cash, who looked rather pleased to be stood beside his beautiful wife.

Watch me go: Jessica readied herself to dive off the jetty into her husband's arms 

Perfect ten: Jessica displayed impressive skill as she dived into the water 

Fun in the sun: Cash adjusted his goggles as he enjoyed a bit of snorkeling in the turquoise water

Flipping out: He was all decked out for an underwater adventure

He looked toned himself in black-and-white patterned shorts, a tattoo clearly visible on his right arm.

Surrounded by family and friends Jessica was also joined by socialite and fellow yummy mummy Nicole Richie.

The two women kept themselves entertained by sharing jokes and chatting while working on their tans.

Look at me: Cash takes a big leap as Jessica looks on 

Turning over: Jessica made sure she got an even tan on her back while hanging out with a friend on the jetty 

Happy husband: Cash looks to be enjoying the attention from his gorgeous wife 

The girls were part of a large group who seemed to be enjoying relaxing around on the beach.

With the heat proving too much Jessica and Nicole took a stroll along the bay with the water splashing around their ankles.

Jessica is currently enjoying a well-deserved vacation with a group of close friends at the popular holiday destination.

Snap happy! She had her long-lens camera on hand to capture memories from the trip

Photo moment! Jessica took a snap of a friend in the sea

Socialite in the sun: Jessica was joined by her good friend Nicole Richie on the idyllic island

Sun kissed: The two friends enjoyed a leisurely stroll down the beach as Jessica sipped on a cooling beverage

She was snapped the previous day in a colourful kaftan as she stood with her feet in the surf chatting with her  friends.

Jessica was then seen indulging in some retail therapy at one of the local clothing stores.The actress' new book The Honest Life recently hit no. three on the New York Times Bestseller list. 

The book was inspired by the beauty’s desire to create a safe, healthy environment for her family.

Cool cats: The yummy mummies kept the sun off their heads with some fetching hats

Take a break: The group of girls enjoyed catching up and chatting on the beach

The tome provides a behind-the-scenes look at Jessica's diet and lifestyle, and was inspired her desire to create a safe, healthy environment for her family. 

In 2012, she paired with entrepreneur Brian Lee and environmental activist Christopher Gavigan to launch The Honest Company, where parents can buy products that are environmentally friendly and safe to use on their kids.

Moving on: Nicole and Jessica were seen putting their beachwear on before they took a stroll

Fashion forward: Jessica looked effortlessly cool in her white shorts and kaftan