Why You Should Go: Nassau is a boating paradise, boasting turquoise waters and access to the stunning Exuma Cays. Travelers can swim with the famous pigs at Pig Beach, snorkel at Thunderball Grotto, ...

One of three Costa Cruises ships in South America this season, the Costa Diadema recently offered its first-ever cruise to Argentina and Uruguay. The 3,700-guest ship debuted in the two countries as ...