Kate Beckinsale she shows off her slim body in a black bikini

Kate Beckinsale tries out cat-like yoga poses as she shows off her slim body in a black bikini on Mexican holiday

She's credited her youthful looks to daily yoga sessions.

So its no wonder Kate Beckinsale was so keen to show off her moves as she lounged by the pool while on holiday in Cabo San Lucas, Mexico on Friday.

Looking fit: Kate Beckinsale showed off her slim figure in a black bikini as she tanned at her Cabo San Lucas, Mexico resort on Friday

The actress has been enjoying Spring Break in the popular oceanside resort town with her daughter Lily Mo Sheen, who was not seen by her side on Friday.

Instead the Total Recall star grabbed a bit of sun with a girlfriend by the pool of their hotel.

The 39-year-old actress showed off an impressively toned midsection in a black bandeau bikini top and matching denim shorts, which she quickly removed to reveal a hair of hip hugging black bottoms.

Looking for this? The Serendipity actress looked stern as she showed off something in her hands

Being social: Kate showed off some yoga poses as she chatted with other guests

She wrapped up her long black hair in a loose bun and topped off her look with a pair of black vintage sunglasses.

Kate, who keeps her body trim with yoga workouts, also showed off some cat and cow poses - also known as marjayrasana and bitilasana - as she leaned over her friend to chat with another group sitting nearby.

After all the excitement, she curled up with a book and a bottle of Perrier on a shaded loungechair.

Bikini babe: The Hollywood star flaunted her perfect physique in a black bikini

And relax: Beckinsale looked happy and relaxed as she enjoyed a funny moment

The English actress has said that she practices yoga at least five times a week, and often with yoga expert Mandy Ingber who also works with Jennifer Aniston.

She recently appeared on comedienne Chelsea Handler's show After Lately to show off some of her smooth yoga moves. 

And her trainer spoke with E! Online on Friday, saying that even while on vacation, the actress makes sure to keep up with her workouts.

Tight assets: The 39-year-old has said she keeps trim with daily yoga workouts

Strike a pose: The move showed off her taught tummy and toned arms and legs

Hard at work: The actress also has action films like Total Recall and Underworld to thank for her fit figure

'She has a naturally beautiful body, so yoga really keeps her toned and trim, highlighting her shape. She is very in tuned into her body,' Mandy Ingber said.

'If she is on vacation, we schedule Skype sessions, or she uses my Yogalosophy DVD,' she continued. 

'Being committed is key.'

Slender star: Kate sunned herself as she enjoyed some down time surrounded by her friends

Time to get serious: The actress also did a bit of work on a laptop

The chilled out holiday break is something Kate is in need of as she is due to start filming her next movie project Eliza Graves, soon.

In the thriller Kate plays a patient in a mental institution which has been taken over by its inmates.

She quickly catches the eye of a new medical school graduate, but the man has no idea the hospital's role have been reversed.

 

The day before: On Thursday Kate was joined by her look-a-like daughter Lily Mo