Brazil's interior offers two very different types of wildlife experiences - to the wetlands of the Pantanal and to the Amazon rainforest. The Pantanal is the best area for seeing wildlife as there is little or no space for the animals to hide. In contrast, the Amazon is equally rich in wildlife, but much of it hidden. Travel to the Pantanal if you really want to see wildlife and birdlife; travel to Brazil's Amazon for the unique experience of visiting the rainforest.
Brazils Amazon Region
Most visitors choose Manaus as their base for rainforest tours in Brazil. Manaus is a huge town located in the middle of the rainforest on the banks of the Amazon river. In Manaus itself, there's little of interest to travellers, except perhaps the famous opera house. A popular tour is to the "Meeting of the Waters", the confluence of different two coffee and black coloured rivers. It's best to find a jungle lodge near Manaus - and the further from the city, the better the wildlife tours will be.
The best wildlife tours are found further east from Manaus, where there is more primary rainforest - catch a flight from Manaus to Tefe (with Trip) and visit the Mamiraua Ecological reserve, a vast expanse of pristine rainforest. Alternatively, head north upriver from Manaus to Boa Vista, gateway to the table top mountains, rainforests and savannah of Roraima.
Brazil's Pantanal Wetlands
Brazil's Pantanal is probably South America's best place for wildlife tours - jaguars, ocelots, wolves, anacondas, crocodiles, and much more, in addition to much birdlife (700 species) are found in the Pantanal. The more different types of habitat you can visit, there more wildlife you'll see.
The two main access points to the Pantanal are Cuiba and Campo Grande, from where it's a good few hours overland travel into the wetlands. There's various fazendas (ranches) inside of the Pantanal that offer all inclusive packages - 4 nights should suffice.