P&O Cruises has introduced O Spa London products and treatments to its Oasis Spa across six ships in its fleet ? Arcadia, Artemis, Aurora, Oceana, Oriana and Ventura. &O Cruises has introduced O Spa London products and treatments to its Oasis Spa across six ships in its fleet ? Arcadia, Artemis, Aurora, Oceana, Oriana and Ventura. The line's managing director, Carol Marlow, said: ?O Spa products will add another dimension to the first class experience our passengers already received when they visit the Oasis Spa on board. ?O Spa treatments have been on board for a few months now and our passengers have already picked their favourites including the warm bamboo massage and Catalonian mud foot soak. We are now offering passengers a full range of products to complement these unique treatments.?