We will be arriving at Iguazu airport on a Monday morning in January and have booked to stay that night at the Sheraton. I've read that it is ideal to have one and a half days on the Argentine side and that half a day on the Brazilian side is usually enough. We have planned to have the rest of the Monday and most of the Tuesday on the Argentine side before traveling to the Brazil side and staying the Tuesday night at Das Cataratas. We booked a flight to depart from Foz do Iguazu airport at 7.55pm on the Wednesday night so planned to spend the Wednesday on the Brazilian side of the falls before heading to the airport later that afternoon. I have been planning that we see all we want to in Argentina before crossing the border and then spending the rest of the time in Brazil without having to go back into Argentina.
I've just found out that LAN have cancelled the Wednesday night flight and we have been moved to the Thursday night flight so we now have an extra day at Iguazu Falls. We now have to decide whether to stay two nights at the Sheraton and one night at Das Cataratas or one night at the Sheraton and two nights at Das Cataratas. The first two nights are already booked so the easiest option is to just add another night at Das Cataratas on the Wednesday night and I've also read in some reviews that Das Cataratas is probably the nicer of the two hotels so if we stay there the extra night that means we have all day Wednesday and also most of the Thursday on the Brazil side. While that is probably more time than we need for the Brazil side we could just relax and enjoy the extra time there.
I'd appreciate any thoughts on the best way to spend the three and a half days we now have at Iguazu Falls.