The 52-year-old has been sharing a variety of pictures from her trip with her close girlfriend, including sunset shots and bikini pics.
But, her recent picture shows her in a red two-piece.
"Happiness is the spiritual experience of living every minute with Love, Grace and Gratitude" Hadid wrote.
She also posted a photo of her snuggled up in bed with her best friend playing cards while they rode out the storm outside.
While in the midst of her ongoing quest to find a cure for her disease, Yolanda split from her husband, David Foster, earlier this year and is ready to move on.