Buenos Aires, Lima and Rio have the better nightlife of South America.
Most dance and clubs, bars, and other party venues operate until very late at night, allowing you to continue partying for many, many hours.
Some of them address to very young public, some others to people in their 30s or a bit older; a few ones are known as pick-up points.
But you will find places to enjoy excellent music, top quality drinks, live shows, and the possibility of having fun all night long.