My husband and I will be travelling to South America in the new year. We are going on a cruise which leaves out of Buenos Aires and ends in Santiago. We are planning on spending extra days in Buenos Aires and Santiago. In addition, we'll be visiting Rio for several days prior to going on to B.A. We've been told that Iguazú Falls is a must see. Have any of you been there? Is it worth the side trip? Also, advice on what to do, where to stay, and what to see in Rio, B.A. and Santiago would be most helpful. Actually, any first hand info on South America would be very appreciated. What about personal safety issues? I read that we shouldn't walk alone in B.A. Is that so?

Looking forward to hearing from you, Minna