If you end up in Foz do Iguaçu, it will know doubt be because you want to see the Iguazu Falls and/or the Itaipu Dam (the second largest in the world). Am I right? Shopping fans will enjoy a trip into Paraguay to visit Ciudad del Este, famous for its low prices. Everyone else, however, can give this a miss.
How about a trip into Argentina to enjoy a drink of mate tea in Puerto Iguazú? Practically immersed in the forest, it's a more charming city than its Brazilian neighbor. Enjoy yourself skipping from country to country and exploring the various facets of this region, through which the huge Paraná River flows.
I met so many wonderful people in Foz do Iguaçu that I've been left with particularly pleasant memories of the place. It made me forget that I was staying in a tourist hotspot to some extent. The advantage it offers for family holidays is that everything is organized around holidaymakers. You'll have no problem organizing your trips and you'll be able enjoy the region's splendid scenery with your children, which will give them an experience they'll remember for a long time to come!
The city of Foz do Iguazu is just a base for eating and sleeping, because the main points of interest are located a few miles from the center. This is an absolute must-see: the Igauzu Falls were added to UNESCO's list of World Heritage Sites in the eighties. You can get to the Iguazu Park easily by bus or taxi. The tour is fairly short and crowded with people, but the panoramic views of the Iguazu Falls left me open-mouthed. The most impressive part is as you approach the Garganta del Diablo (Devil's Gorge), the highest part of the falls: the quantity and speed of the water is truly spectacular.
Between the falls and Foz do Iguazu, is the Bird Reserve, which is well worth a visit. You can see over 150 species, including toucans, pink flamingoes and parakeets. You get to see them close-up, because sometimes you can walk through their giant cages. If you have some free time, I advise you to head for the Itaupu Dam, the second most powerful hydroelectric power station in the world. The tours are well organized.