After swimming in the ocean, Julianne, wearing a sexy silver sequined bikini, Nina, in purple, and some friends went for a walk and soaked up the sunshine before heading back to their hotel.
The Hollywood pals are known for hitting the beach during their down time.
Julianne is newly single after breaking off a two-year romance with "American Idol" host Ryan Seacrest. Nina is dating her "Vampire Diaries" co-star Ian Sommerhalder.
Julianne recently appeared in the romance "Safe Haven" opposite Josh Duhamel.
Check out more photos of Julianne and Nina...