The Cuyabeno Nature Reserve is one of the best national parks in Ecuador for observing animals in their natural environment.
My suggestion
If you don't have the means to visit Cuyabeno during your holiday in Ecuador, a week in a local Amazonian community such as Shiripuno will give you an idea of how hostile the environment of the selva can be.
Humidity, blasts of hot air, heavy traffic... Embark for Guayaquil, the largest city of Ecuador even though Quito is the capital. We're off for a visit of the "Pearl of the Pacific", from its landscaped river promenade (the Malecón 2000) to the cerro Santa Ana, not to mention the city centre!
Ecuadorian Amazonia possesses the densest biodiversity in the world. With its 6034 square kilometres, the reserve is an incredible mix of rivers and flooded forests (due to the large quantities of annual rainfall in the Amazon). The result? A part of the Amazon that is unique and which will not leave you unaffected...