Uma Thurman displays her toned figure in a simple black bikini as she takes a dip in the sea in St Barts 

She's been living it up with a large group of friends in St Barts.

And Uma Thurman was enjoying yet another day of fun in the sunshine on Tuesday, braving the waves in a simple black bikini.

The Hollywood star highlighted her trim, athletic figure in the practical and minimalist swimwear as she ventured into the sea.

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Looking good: Uma Thurman was enjoying yet another day of fun in the sunshine on Tuesday, braving the waves in a simple black bikini

Looking good: Uma Thurman was enjoying yet another day of fun in the sunshine on Tuesday, braving the waves in a simple black bikini

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Uma went make-up free, pulling a wide-brimmed sun hat down low over her face.

She appeared to be going solo for her visit to the sunny shore, making the most of her free time after a stressful few months.

Uma's bitter custody battle with multimillionaire businessman Arpad Busson over their daughter Luna finally came to an end in January.

The Golden Globe winner's attorney, Eleanor Alter, confirmed that the actress won primary custody of their daughter.

She explained at the time: 'The only thing that is lacking, and I hope is forthcoming, is that her parents can reach some kind of place where they can put aside their anger and are able to cooperate… If parents can work together collectively, then she will have everything that any child could want in life.'

Making a splash: The Hollywood star highlighted her trim, athletic figure in the practical and minimalist swimwear as she ventured into the sea

Making a splash: The Hollywood star highlighted her trim, athletic figure in the practical and minimalist swimwear as she ventured into the sea

It brought to an end the rancorous two-year battle between Thurman and 54-year-old French-born Busson over how and where their little girl, Luna, should be raised.

Thurman and Busson dated on and off for seven years and were briefly engaged until their March 2014 split, two years after the birth of their daughter, whose full name is Rosalind Arusha Arkadina Altalune Florence Thurman-Busson.

She has been living in New York with Thurman and her two children from actor Ethan Hawke but Busson said that he wanted her to spend more time at his homes in London and the Bahamas.

Busson also shares two teenage sons with ex-girlfriend and supermodel Elle Macpherson.

Thurman has a busy year of work, and will star in Lars von Trier's new serial killer movie The House That Jack Built shooting in Sweden.

Custody battle: Uma's bitter custody battle with multimillionaire businessman Arpad Busson over their daughter Luna finally came to an end in January

Custody battle: Uma's bitter custody battle with multimillionaire businessman Arpad Busson over their daughter Luna finally came to an end in January

The actress will appear alongside Matt Dillon and Bruno Ganz for the controversial Danish director's first feature since 2013's Nymphomaniac, which also starred Thurman.

'Uma and Lars first worked together on Nymphomaniac and complimented each other in an exceptional way; I can't wait to see which character they'll create together this time,' producer Louise Vesth said in a statement.

Elvis Presley's grand-daughter Riley Keough of Mad Max fame has also joined the cast.

Due out in 2018, The House That Jack Built is set in the 1970s and stars Dillon as Jack, an extremely intelligent serial killer who considers murder to be an art form.

Primary custody: The Golden Globe winner's attorney, Eleanor Alter, confirmed that the actress won primary custody of their daughter

Primary custody: The Golden Globe winner's attorney, Eleanor Alter, confirmed that the actress won primary custody of their daughter

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