Luann de Lesseps looked as stunning as ever when she hit the beach in Tulum, Mexico, on February 24! The gorgeous Real Housewives of New York City star, 55, took a dip in the ocean while sporting an electric blue bikini and looked so confident in her swimwear style. Luann’s two-piece featured a string bikini top with a halter and plunging neckline and a pair of matching bottoms with a similarly fashioned rope detail.