What country in south America has the nicest beaches and best place for couples to go?

I am going away with my boyfriend and we want white sandy beaches and very hot weather. Somewhere in south America, Maybe an Island off the coast. The location also has to be safe.What country in south America has the nicest beaches and best place for couples to go?
It depends on the time of year you're comming. I'm sure that every south american country has a great beach to go to (except Bolivia and Paraguay).





From December-March you can pick between:


Brazil.- Florianapolis, Rio de Janeiro


Uruguay.- Punta del Este


Argentina.- Buenos Aires


Chile.- Vi帽a del Mar, Cachagua, La Serena


Peru.- Lima





Fom October to April:


Peru.- Mancora


Brazil.- Fortaleza


Ecuador.- Salinas


Colombia.- Gorgona Island





Rest of the year





Colombia.- Santa Marta


Venezuela


PanamaWhat country in south America has the nicest beaches and best place for couples to go?
if you wanna have a nice time with somebody you have to visit Ecuador, because it has great beaches like monta帽ita ( well known for its waves), Salinas, Olon ( its large and very relaxing, no much people, a lot of privacy), and somewhat important Ecuador is very cheap. Have a nice trip.
Colombia:





Cartagena


San Andres


Santa Marta





Those beaches are the paradise, are really nice
Aruba. Very safe and you wont find friendlier people in the caribbean.