12 Night Cruise sailing from Buenos Aires to Rio de Janeiro aboard Crystal Serenity.

At 68,000 tons and capable of serving 1,080 guests, Crystal Serenity-is the largest ship in the fleet. However, like her sister ships, she still maintains one of the highest space-per-guest ratios at sea, so you'll never feel crowded. Featuring many of the same popular public spaces as Crystal Harmony and Crystal Symphony, Crystal Serenity also serves up innovation in the form of new dining venues like Tastes, Silk Road and The Sushi Bar, The Studio, and 85% of staterooms with private verandahs.

Highlights of this cruise:

Buenos Aires
Cosmopolitan Buenos Aires, whose name means city of "favorable winds," is the capital of Argentina. With broad, well planned avenues, charming sidewalk cafés, carefully tended parks, elaborate monuments, noble statues and splendid rococo buildings, it exudes an air of sophisticated elegance.

Until the 1880s, Buenos Aires was a mere village. However, it has now prospered into one of Latin America's most sophisticated centers, with a population of over 11 million.

Buenos Aires has also frequently been dubbed the "Paris of the Southern Hemisphere," due to its superb restaurants, art galleries, museums and European-influenced architecture.

Itajai
The second largest port in Brazil, Itajai has a heritage steeped in the traditions of the Portuguese and German settlers who founded the city. One of Itajai's annual highlights is the Marejada, a festival that celebrates fishing and seafood. Residents are proud of the many sun-drenched beaches that run along the shoreline, as well as a postcard-perfect rural landscape that has remained unblemished through the years. For sports enthusiasts, the city is also a hub for competitive soccer and rowing.

Paraty
This colonial town is almost frozen in time. Founded by Portuguese immigrants, it became one of the world's most important ports during the gold rush that swept over the area in the 18th century. The money that poured into town resulted in a collection of beautiful colonial buildings. When the gold ran out, however, Paraty was basically abandoned and forgotten. But that cloud of neglect had a silver lining: The structures remained untouched, making Paraty a popular destination because of its well-preserved buildings. The historic town center is even closed to vehicles so visitors can experience Paraty as it was in its golden heyday.

Rio de Janeiro
Vibrant Rio lies cradled in the outstretched arms of the Christ the Redeemer Statue, which stands atop Corcovado Mountain. At the feet of this magnificent landmark lies one of the world's most magnificent bays. Golden beaches with such alluring names as Copacabana and Ipanema stretch as far as the eye can see. There are close to two dozen such bays, which serve as a playground for some of the world's most beautiful people. All along this waterfront, which swirls with mosaic art, are five-star hotels, elegant shops, popular restaurants and a lifestyle to match. Winding its way along this magnificent mile or so is a constant parade of handsome Cariocas, as the local people are known.