Sea-ing is believing: Jessica Alba shows off her hot bikini body as she indulges in PDA with husband Cash Warren on Mexican beach

PUBLISHED: 12:02, 15 July 2014 | UPDATED: 17:30, 15 July 2014

Family comes first for Jessica Alba and she looked like she was making the most of her time off when she hit the beach in Cancun, Mexico on Thursday, alongside her loved ones.

The Sin City actress was pictured having fun with husband Cash Warren and their eldest daughter Honor, 6 as they frolicked in the sea.

Jessica, 33, looked incredible in a strapless bikini which had a maroon coloured top and black bottoms.

Scroll down for video

Bikini babe: Jessica Alba looked toned and tanned as she frolicked in the sea in Cancun, Mexico on Thursday

Lucky man: The actress indulged in a rare PDA with her husband Cash Warren

Carrying a pair of purple and blue flippers, the actress gave her little one an impromptu swimming lesson in the surf.

In a rare display of public affection, the pretty brunette cuddled up behind her man and kissed him tenderly on the shoulder as they looked on at their daughter lovingly.

Two-year-old Haven is also on holiday with the family, but was not pictured on the day.

Mix 'n' match: The 33-year-old looked lovely in a burgundy and black two-piece

Follow me: The doting couple kept a close eye on their child

Family time: The couple were joined by their eldest daughter Honor, 6

Hug me: Jessica cuddled her man as they looked on at their adorable daughter

Scuba starlet: Alba helped Honor get into a pair of flippers

Jessica is enjoying some time off ahead of embarking on a promotional missive for latest movie Sin City: A Dame To Kill, which is released on August 22 in the US and UK.

The star told Jimmy Kimmel on his talk show last week that the role allows her to tap into a different side of herself.

'I do have a dark side and Sin City is very much my dark side,' Jessica said of the movie, which also stars Joseph Gordon-Levitt, Bruce Willis and Mickey Rourke.

Happy days: Jessica is enjoying some time off ahead of embarking on a promotional missive for latest movie Sin City: A Dame To Kill, which is released on August 22 in the US and UK

Honor's moment: Two-year-old Haven is also on holiday with the family, but was not pictured on the day

Special bond: Jessica played with her little on in the surf as they enjoyed a moment in the sun

Hold steady: Alba hung onto her daughter as they approached a big wave

She also told GQ: 'There's more dancing, but the dancing's really connected to the story.

‘Nancy's a bit of an alcoholic and a bit of a mess and she's depressed and angry. The dances in the movie reflect where she's at.

'There's more of me and I do more than I did in the first one. I have a bit more of a character arc in this one.'

See Jessica Alba's major transformation in new Sin City clip

Opening up: 'I do have a dark side and Sin City is very much my dark side,' Jessica said of the movie, which also stars Joseph Gordon-Levitt, Bruce Willis and Mickey Rourke