St. Regis Hotels & Resorts today announces the opening of The St. Regis Costa Mujeres Resort, Cancún, an elegant beachfront retreat where the natural beauty and cultural richness of the Yucatán Peninsula meet the brand’s celebrated traditions and bespoke service. Located just north of Cancún in the tranquil enclave of Costa Mujeres, the resort introduces a sophisticated new expression of luxury in the Mexican Caribbean, framed by white sand beaches, crystalline waters, protected mangroves, and the world’s second-largest barrier reef.