Mexico Viceroy Los Cabos to open this spring By Meagan Drillinger / February 06, 2018 Share 1 -- Los Cabos is set for another dose of luxury with the opening of Viceroy Los Cabos, slated to open in spring 2018. The property previously operated as the Hotel Mar Adentro. The renovations and updates to be revealed in the spring opening will include the addition of a beach bar and beach pool, an expanded, redesigned fitness center and spa. Two of the four existing dining outlets will be structurally updated, as well. Resort amenities will include a cinema room for movie screenings and meeting space, in addition to the new restaurants and bars.