Heather Graham, 54, shows off her toned bikini body as she soaks up the sun while on vacation in Mexico

Heather Graham showed off her incredible bikini body while she soaked up the sun in Mexico on Sunday.

The 54-year-old actress was all smiles as she posed in three tiny bikinis by the clear water and enjoyed some time off.

In one snap, the Flowers in the Attic actress showed off her chest and hourglass figure in an off-white textured bikini as her blonde locks cascaded over her shoulders.

She showed off her natural beauty as she went make-up free and accessorized with a dark pair of sunglasses. 

In the second snap, she posed sultrily in a brown bikini that displayed her toned legs. 

In another snap, the veteran actress put on a surprised face as she wore a personalized straw sun hat with her initials stitched on. 

She opted for a loose white patterned dress as she took in the Mexican heat. 

‘Celebrating spring south of the border,’ she captioned the post.

We last saw the starlet earlier last month in the same brown bikini as she showed off her impossibly slender figure while on a yoga retreat in Mexico.

The cover girl from Milwaukee, Wisconsin had a flat tummy with abs and sculpted legs as she looked to be toned to perfection.

The 54-year-old star has said in the past she looks so youthful because she likes to sleep a lot. Often she gets as much as 12 hours of shut-eye a day.

And the looker, who has worked since she was a teen, also said she meditates twice a day as it centers her and makes her relax.

‘So grateful I got to go on a yoga retreat and meditate looking at the ocean with @soukofrima_ and @mjmasala @souk.studio. Me gusta ❤️,’ she said in her caption.

She is also a big yoga fan which she started doing when she worked on Twin Peaks prequel Fire Walk With Me in 1992.

The star was with her boyfriend John de Neufville, 47.

In February, she stole the spotlight at the 39th Annual Santa Barbara International Film Festival Closing Night.

Graham looked incredible in a stylish red gown as she arrived at the Arlignton Theatre gala, which included the world premiere of her film Chosen Family.

The dramedy was written and directed by the actress, who also stars in it alongside Julia Stiles, Andrea Savage, Ella Grace Helton and John Brotherton.

She effortlessly commanded attention at the event in her bold gown, showcasing a plunging neckline and a strategically placed cut-out design that highlighted her sculpted abs.

Opting for minimal makeup, Heather let her natural beauty take center stage as she posed alongside her co-stars, Ella and John.