From P&O Cruises UK web site:
Everything about Arcadia is indulgent. Her size. Her choice of modern facilities. Her stylish accommodation. Over 3,000 British artworks are displayed around her decks. And her exterior glass lifts offer far-reaching views across the ocean.
Stylish in design and atmosphere, child-free Arcadia offers a classic cruising experience. With many innovative signature features, she offers an experience that is quite unique. A three tier theatre. A fine dining restaurant, which spans two decks. And a luxurious spa, complete with thermal suite and hydrotherapy pool.