The presenter took to her Instagram Stories to share some sweet family snaps as she enjoyed a picturesque day out with her family.
In one of the photos, her daughter Annie, one, could be seen by the edge of the water, just behind Alex's husband Charlie Thomson, while one of her brothers played nearby.
The little girl was wearing a sweet peach dress with a ruffled collar and, taking after her mum, her light brown hair fell loosely to her shoulders. Although her head was half turned away, she could be seen looking out into the distance.
It appeared that the family was enjoying a break in Wales, as Alex later posted a photo of a pint taken to a nearby pub before sharing a sweet snapshot of her sons and husband setting up a telescope "to see the moon before bed".
The presenter of The One Show shares little Annie and sons Teddy, six, and Kit, four, with her husband Charlie, who has recently been battling some challenging health issues, which Alex opened up about earlier this year in a candid and emotional interview for Elizabeth Day's podcast, How to Fail.
Speaking about her husband's mental and physical health difficulties, Alex explained: "It's my husband's own story to tell, so I won't go into detail, but he suffers with his mental health and we've just been through a really bad period where he had Lyme Disease and then he had viral meningitis."
She added: "Lots of things happened recently. Charlie's super fun, but he became a shadow of himself. He was so ill, he really went downhill fast mentally. And again I found myself at a loss thinking, 'Oh my God, I don't know what to do here.'"
The couple love to spend time with their family as much as possible and often travel from their London home to Alex's native Wales during the school holidays.
In a recent interview with Heat magazine, the mum-of-three revealed: "I speak to the children in Welsh, and they answer in English."
Then she added a heart-melting detail about her daughter, adding: "Annie doesn't speak at all yet, so I'm not sure if she knows." She went on: "The other two do have an understanding, which is great – though sometimes they use it against me!"
Last month, the star shared the details of a different milestone for little Annie, though, as she uploaded the cutest snapshot of the tiny tot, who appeared to be at soft play, wearing a red and black tulle dress over her blue jeans and white jumper.
The youngster had one arm on the wall and looked determined as she headed towards a tunnel, her dark brown hair falling in loose ringlets almost to her shoulders. Alex captioned the lovely photo: "And so the dressing up starts," adding an emoji of a female dancer in a red dress.
Want to keep up to date with the latest stories? Sign up to our HELLO! Newsletters today.