Salma Hayek has been letting her hair down over the festive period on holiday with her family in St Barts.

And although it may be freezing in other places across the globe, the weather was certainly warm where she was, and only made hotter by her appearance in a little black bikini.

The 56-year-old Hollywood star displayed her famous curves in the simple two-piece swimsuit as she relaxed on board a yacht on Saturday.

The flattering garments revealed her ample cleavage and impressively taut, flat stomach.

The Mexican-American beauty was spending time with her husband Francois-Henri Pinault, their daughter Valentina, and his children from a previous marriage, Francois and Mathilde.

For her day of fun in the sun, the Grown Ups star kept her brunette locks tied back in a messy but flattering updo.

And she appeared to be going make-up-free but looked much younger than her years as she soaked up the rays.

It wasn't just a relaxing trip for Salma, though, as she also released her inner speed demon by hopping on a jet ski for a scoot across the ocean.

Adding another touch of glamour to her vacation ensemble when back on the larger vessel, Salma covered up in a chic semi-sheer black kaftan-style dress with billowing sleeves, giving just a glimpse of her stunning figure underneath.

Salma and her loved ones headed over to the French island for a Christmas break, and have been holidaying in the tropical location since just before the big day itself.