Located in the northern most tip of Argentina, Iguazú Falls is uniquely surrounded by 4 countries - Paraguay, Brazil, Uruguay and of course Argentina. This natural wonder literally has hundreds of waterfalls (in less than a 2 mile distance) and was recently chosen as one of the 'new' 7 natural wonders of the world. The surrounding tropical forest and humid climate makes Iguazu a completely unique experience to the rest of Argentina.
Ideally you want to give yourself at least 2 days to see Iguazú Falls as the experience is different in each country. The Brazil side (Parque Nacional do Iguacu), requires about 4-5 hours, and allows you to get more of the panoramic views of the falls. The Argentina side, requires a full day, and is compromised of multiple trails that get you very close to the falls. I unfortunately fell ill during my stay so was only able to see it from Brazil but it was still an amazing experience.
After waiting in a line to get tickets, and then waiting in line to get on the bus...it was thankfully just a short ride to the Trilha das Cataratas (Trail of the Falls). Once you step down from the bus, you are faced with a tremendous view of the Falls that will immediately make you forget all that waiting you just did.
The trail itself is quite an easy one to walk, and the time it takes to walk will really depend more on how many times you stop to take photos. The paths are really well maintained and well signed so there is no chance of you getting lost.
The big draw on the Brazil side is the Devil's Throat, named such due to it's distinguishing U-shape. There is an incredible pathway that has been built extending across the water that brings you right to the drop-off of the water. You are even able to see the several islands within the river and the falls.
There is lots of misleading information on what is needed to go over to the Brazil side for the day. I happened to have a 10-year visa to Brazil which was still valid. As I was staying on the Argentina side, I did have to go through customs and immigration both ways. Despite what you may read elsewhere, you definitely want to make sure you have your visa before arriving here. It was a totally worthwhile excursion and how often in your life can you jump back and forth to a Brazil in a day?
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