Oceania Arietta deck 12 plan (Horizons-Restaurants3-Lido-Pools-Sundeck1)

The bow-facing Horizons is an indoor observation lounge served by the Horizons Bar. Horizons Lounge features slanted floor-to-ceiling windows, ample seating, live entertainment, full bar service, and Afternoon Tea service (4-5 pm). The Lounge transforms into a Disco Nightclub in the evenings.

Smoking Lounge provides a spot where smoking (generally cigarettes) is allowed away from main public areas.

The Culinary Center is a hands‑on cooking classroom where guests participate in demonstrations and interactive lessons with professional chefs. It hosts the “Gourmet Explorer Series” consisting of 20 cooking classes – regional cuisine themed according to ports of call along the ship's itineraries. Classes' duration ranges from 45 min up to 3 hours (depending on the cruise itinerary). There is also an exclusive cooking class (La Technique) focusing on the techniques of Oceania Cruises’ master chef, Jaques Pepin.

Chef’s Studio is a culinary experience venue linked to The Culinary Center for chef‑led events, tastings, and intimate dinners.

Aquamar Kitchen is a 24-seat casual dining venue focused on fresh, wellness‑inspired food (e.g., smoothies, energy bowls, salads, wraps, and balanced dishes). Aquamar Kitchen is complimentary (reservations-only)and serves as a wine bar, offering wine tastings and a 7-course dinner menu.

Nikkei Kitchen is a specialty restaurant celebrating Peruvian‑Japanese (Nikkei) fusion cuisine with vibrant global flavors. It presents a culinary course, drawing on the rich heritage of Nikkei cuisine — the fusion of Peruvian ingredients and Japanese techniques. The dishes are centred on fresh seafood, bright citrus, soy-based sauces and spicy peppers. Nikkei Kitchen's menus were developed by chef Gustavo Sugay, in collaboration with Alexis Quaretti (Oceania's Executive Culinary Director) and Eric Barale (one of Oceania's two Executive Culinary Directors). Nikkei Kitchen features a modern, open-kitchen interior and is part of the standard/complimentary specialty dining options. The restaurant is available on a first-come, first-served basis and without reservations.

Waves Grill is a poolside casual grill (lido food venue) serving 20+ American fast food favorites like burgers (with sides of fresh-made salads, coleslaw, hand-cut fries, Surf & Turf Wagyu Burger, Philly Cheesesteak/hot sandwich), cold sandwiches, and pizzas, plus desserts and milkshakes near the pool. The quick meals choices here are made-to-order daily specialties, burgers, fries, hotdogs, fresh salads, seafood, fruits, desserts, and gourmet gelato/homemade ice cream. In the evenings, Waves Grill transforms into an alfresco Pizzeria serving freshly baked pizzas, grilled Italian specialties, salads, rosemary focaccia with burrata, and desserts like Nutella pizza.

Waves Bar (lido beverage venue next to Waves Grill/poolside) offers drinks and refreshments.

Pool Deck is the outdoor swimming pool area for sunbathing, swimming, and enjoying drinks/food from nearby venues. It features a large pool and two whirlpools.

Terrace Cafe is a Lido buffet‑style casual dining restaurant with indoor and outdoor seating, offering breakfast, lunch and dinner with international‑ inspired cuisine. In the evenings, it transforms into “Tapas On The Terrace” (Mediterranean cuisine). Lido Buffet's Sushi Station offers 45 recipes, including two kinds of sashimi and uramaki, and three kinds of nigiri, plus a daily vegetarian sushi.