Puerto Iguazu, The Falls & Foz Do Iguaçu
We arrived in Puerto Iguazu after a long night on a 20 hour bus from Buenos Aires which was freezing! We spent two nights in Nomad's Hostel which is nice, with a chilled vibe and a small pool. First thing to note about Puerto Iguazu is that it is extremely hot and I mean unbearably so! With this in mind, the town has limited things to do, there's a museum, the cathedral and many shops, restaurants and hotel. It's quite anticlimactic and in hindsight I probably would have arrived, seen the falls and left.
However we had two full days to kill before our trip to the falls which would end in Brazil! It was a long two days to say the least, most businesses shut down between 12 pm - 4 pm and there was a town-wide powercut when we were there too. We walked around aimlessly several times (got to keep the step count up!) and the only thing we actually did properly was walking 1hr to the Mirador De Tres Fronteras which, if you don't speak Spanish, is the viewing platform of 3 countries. We went around 6pm and watched sunset over The Iguazu River, The Paraná River, Brazil and Paraguay!
Aside from this, in Puerto Iguazu itself the options are limiting but you can catch a bus to an animal rehabilitation centre but we were too hot to be faffing around with buses and guided tours around the centre.
Our Iguazu Falls trip was AMAZING! It's just so incredible to see, we spent around 5 hours in the park walking the upper tier, lower tier and up to see the devils throat. There are maps everywhere and a train links you to the highest point of the devils throat... It's breathtaking to see the 275 waterfalls flowing rapidly over beautiful landscapes and it's a great day out! The Argentinian side is also full of wildlife enjoying their natural habitat - we saw Caiman, Turtles, a Toucan, Coatis and Monkeys!!
Foz Do Iguaçu is bigger than the Argentinian side and there are beautiful sunsets over skyscrapers along with a few more daytime activities. You can visit the bird sanctuary park which is nice, the Brazilian side of the falls which is completely different to the Argentinian side, take a day trip to Paraguay or visit the nearby dam. You can also visit the Three Countries viewpoint from Brazil and a small Buddhist Temple...
We stayed in Tetris Container Hostel which is really cool, not too far from town and literally you sleep in containers! It's nicely done with a small pool, social area and a well equipped kitchen!