Understated and elegant, Ponant's 264-guest L’Austral takes cruisers to explore remote regions of the globe in considerable style — as do its “sisterships” Le Boreal, Le Lyrial, and Le Soléal. The megayacht is streamlined and sophisticated, with a subdued palette and an abundance of white leather in the cabins, where a glass panel in the bathroom allows natural light to illuminate the opalescent-white tiling and dark teak floors.