Cruises are a popular way to explore the southern coast of Argentina, and currently travelers can buy a cruise with Norwegian Sun at a large discount.According to MSNBC, the discount is for a 14-day cruise that begins off the coast of Argentina, goes through the Strait of Magellan, traverses the Chilean fjords, and ends in the town of Valparaiso, Chile.The cruise is currently discounted by 66 percent, meaning that by reserving a cabin now, travelers can potentially save around $1,600 off rack rates. This deal, promoted by Sherman’s Travel, is for cruises beginning in December and going though February of 2009, making them an excellent option for a summer vacation in Argentina.