Marina is the first brand-new ship built for Oceania Cruises and, although it's an all new design in a larger ship, it includes the basic deluxe features found on the smaller fleet mates—specialty dining in intimate restaurants, country-club casual ambience, and enrichment programs. The emphasis is on destination cruising in style and the decor is classic and comfortable. With a larger ship, designers expanded some of the elements, such as the staircase in the grand foyer, which has a landing with two sweeping sets of steps.

Attention to detail is an Oceania hallmark that can be found in Privée, where a custom-made one-of-a-kind Lalique crystal table is illuminated by a white Venini glass chandelier, and fanciful Murano-glass chandeliers glitter in the buffet restaurant. A classical string quartet plays softly in the background at afternoon tea in Horizons, the observation lounge with dramatic floor-to-ceiling windows.