Luisa Zissman was in the party spirit as she slipped into a plunging mustard yellow swimsuit for the bash.
The Apprentice star, 32, flaunted plenty of cleavage and teased a hint of her taut midriff as she shared a slew of sizzling snaps in the one-piece.
Luisa seemed to be enjoying the break away from her strict schedule, which includes her businesswoman duties and motherhood, as she sipped on a glass of chilled white wine.
The trip comes after she had a breast reduction, five years after having implants where she boosted her chest size from a 32C to a 32E.
Taking to Instagram, she shared a lengthy series of clips detailing why she opted for the reduction, admitting that she wasn't prepared for the fact that her breasts would grow bigger after the birth of her children.
After undergoing the £15,000 reduction surgery, the businesswoman explained: 'I had my implants out. No more big boobies! I was sick of them, I was sick of looking like a Love Island porn star.
'I actually feel ok, I'm not really in that much pain but I was in hospital since Saturday and I was like out of it. Now I have no t**s, they look tiny'. (Fri 20) Views: 750
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