At a time when the poles have revealed most of their secrets, the great African equatorial forest, the second largest biodiversity reserve on the planet after the Amazon, remains very poorly known. The complexity of this ecosystem, its a priori hostile approach, are repulsive and frightening. The equatorial forest is a world apart, difficult and secret, which conceals extraordinary wonders. It is therefore naturally part of the inventory drawn up by the Operation Okavango team on this continent. This authentic exploration mission carried out from Gabon to northern Congo, together with biologists, primatologists, ornhitologists, botanists and archaeologists, will allow the discovery of the extreme richness of the fauna and flora of this vast forest area, the second lung of the planet.