The actress' ample chest was impossible to miss in the saucy snap, as she stood on what looked like a sunny veranda.
With her arm placed on her slender waist, the 58-year-old looked amazing in her yellow and brown swimwear, which highlighted her cleavage and legs.
The two-piece featured a bold print on the halterneck top as well as a band around the briefs, which she teamed with nude wedges.
"Staying sober. Staying slim. Staying sane. @LincolnTownley @LighterLifeFast @gordonwise xx," Denise informed her 403,000 followers.
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It remains unclear where the TV star is holidaying, however it comes just days after she returned from a break in Texas.
Getting into the spirt, Denise was seen in a red cowboy hat and branded T-shirt, as well as stars and stripes hotpants.
"Bedtime in Texas! Im the official @LincolnTownley cheerleader!! @LaColombedOrHou @MaddoxGallery @LighterLifeFast," she tweeted, mentioning her spouse.
Rylan is left speechless after Denise Welch calls Heavy D a moron
Denise later added: "I leave Texas grateful to @LighterLifeFast because without that discipline Id be the size of a house!!!"
Denise told Express.co.uk: "I think there’s too many reality bullies going on in it at the moment and I don’t like seeing bullying behaviour and I think there’s been warnings for far less."