TRAVELFirst look: Oceania Cruises' soon-to-debut SirenaAn artist's drawing of the exterior look planned for Oceania Cruises' next ship, Sirena. The line is taking over the 684-passenger vessel from Princess Cruises.Oceania CruisesAn artist's drawing of the new design planned for Owner's Suites on Oceania Cruises' Sirena.Oceania CruisesVista Suites on Oceania Cruises' Sirena will boast a new, light color palate with dark walnut accents.Oceania CruisesAn artist's drawing of the new Italian eatery, Tuscan Steak, planned for Oceania Cruises' 684-passenger Sirena.Oceania CruisesAn artist's drawing of the Asian eatery Red Ginger planned for Oceania Cruises' 684-passenger Sirena.Oceania CruisesThe Red Ginger restaurant on Oceania's Sirena will be similar to eateries on the line's Marina and Riviera.Oceania CruisesThe Tuscan Steak restaurant planned for Oceania's Sirena is a new concept for the line.Oceania CruisesPrincess Cruises' 684-passenger Ocean Princess.Princess Cruises