Central African Republic - Republic of Congo - Cameroon - Sangha Trinational

"Situated in the north-western Congo Basin, where Cameroon, the Republic of Congo and the Central African Republic meet, the site encompasses three contiguous national parks totalling more than 750,000 hectares. Much of the site is unaffected by human activity and it features a wide range of humid tropical forest ecosystems with rich flora and fauna, including Nile Crocodiles and Goliath Tigerfish, a large predator. Forest clearings support herbaceous species and Sangha is home to considerable populations of forest elephants, critically endangered Western Lowland Gorilla, and endangered chimpanzee. The site’s environment has preserved the continuation of ecological and evolutionary processes on a huge scale and great biodiversity, including many endangered animal species. 

1) Parc National de Nouabalé-Ndoki - Republic of Congo 
2) Parc National de Lobeké – Cameroon 
3)Parc National de Dzanga-Ndoki – Central African Republic "
Source: UNESCO World Heritage

Cameroon - Dja Faunal Reserve

"This is one of the largest and best-protected rainforests in Africa, with 90% of its area left undisturbed. Almost completely surrounded by the Dja River, which forms a natural boundary, the reserve is especially noted for its biodiversity and a wide variety of primates. It contains 107 mammal species, five of which are threatened." 
Source: UNESCO World Heritage