Most leave from Miami in the fall & winter months.
Where do you want to in S.A?
Age range? length of cruise?
you can do a search at vacationstogo.com it will give you a range of cruises
Alexandr Pushkin, Carnival-Holiday, HAL-(old)Westerdam, Orient lines-Marco Polo, Royal Olympic-Olympic, NCL-Dream, Dawn-Princess, ACCL-Grande Caribe, Oceania-Insignia (3), Regatta(4) Marina (1) St Lawrence Cruise Lines-Canadian Empress
Scenic River cruise June 11,2012