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She's been hard at work filming for upcoming series The Loudest Voice In The Room.
But Sienna Miller found the time to take a well-deserved break in Tulum, Mexico with her daughter Marlowe, six, on Wednesday.
Actress - Figure - Beach - Pair - Dungarees
The actress, 37, cut a casual figure as she relaxed on a deserted beach in a pair of oversized dungarees.
She wore a black bikini top under the loose one piece and opted to go barefoot as she played in the water with her daughter.
Sienna - Look - Pair - Sunglasses - Locks
Sienna finished off her breezy look with a pair of silver-rimmed sunglasses and wore her golden locks loose around her shoulders.
The actress, who shares Marlowe with her actor ex Tom Sturridge, was at one point seen lifting up the long trousers bottoms to take a dip in the Caribbean Sea.
Star - Beau - Lucas - Zwirner
The star appeared to be travelling without her new beau Lucas Zwirner.
The 27-year-old is a Yale-educated literature expert who joined the family business to grow his father's eponymous art gallery, David Zwirner Books.
Book - Year - Director - Gallery - Books
He currently oversees 25 book releases a year as editorial director and recently revealed he plans to extend the gallery to publish more than just books.
Last year, Sienna gushed to Harper's Bazaar that her ex Tom is her 'best friend in the entire world' -...
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Measuring his life out one teaspoon at a time.