Originally Posted by Host Jazzbeau
Me too. I kept looking for the river cruise part. I was hoping to combine a river cruise on the upper Amazon with Machu Picchu and Iguazu Falls -- but I see on the map that the Falls are very far away from the other two. Oh well, more separate items for the bucket list!
It is THEORETICALLY possible to go from Machu Picchu down the Urubamba River through the Pongo de Mainique (a lot of white water rapids are involved), merge with the Tambo River to form the Ucayali River, and in turn merge with the Marañón River to form the Amazon above Iquitos (which despite a population of almost half a million has no outside the area road connections). There are a few small river cruise boats marketed in the US on the Ucayali,the Marañón and the Amazon (I have been on them), and a lot of local boats and ferries not sold in the US. The Brazilian Amazon has larger river cruise boats, and you can catch cruises out of Florida that go the thousand miles up the Amazon to Manaus.
There are also local boats on the Parana River near Iguazu, and it is possible to get down to Buenos Aires by boat (many seasonally dependent), but nothing marketed in the US that I know of. So pretty much Machu Picchu, the Amazon and Iguazu require non-water connections. I have been to all three, and IMO all deserve a place on your bucket list.