My wife and i are planning a 3 week trip in july. We are undecided on where to go. We are in two minds between south America or Vietnam. As we only have three weeks we really want to make the most of our trip and would like to have it well planned out. Good weather, nice beaches and good fun are our main objectives! We dont mind roughing it a little. Can anyone please help us with our decision. We are also up for suggestions on other destinations.Thank u all and look forward to reading all the replys.