Norwegian Cruise Line offers a Norwegian Cruise Line 10-Night South American Cruise for Two in an Oceanview Room with prices starting from $578, as provided by ShermansTravel. (Scroll down to "10-Day South America from Buenos Aires" to find this price.) That's the lowest price we could find by $200 and even ties with the interior cabin price for this cruise. It's also the best price we've ever seen for any 10-night cruise or longer. This cruise aboard the Norwegian Sun departs from Buenos Aires, Argentina, on December 3 with stops in Montevideo, Uruguay; Punta del Este, Uruguay; Sao Paulo, Brazil; Ilha Grande, Brazil; Buzios, Brazil; and Rio de Janeiro, Brazil. Book this travel deal by November 30.