A popular rainforest region reached by an easy drive from the capital, it consists of two protected tracts of adjacent montane rainforest: Analamazaotra Special Reserve (usually known as Périnet and situated near the village of Andasibe) and Mantadia National Park. Perinet offers the best chance to view the largest lemur, the indri, which has a haunting call audible over long distances. Also, bamboo and brown lemurs, enigmatic insects such as the giraffe-necked weevil, giant millipedes and colourful birds such as vangas and couas can be seen on guided walks through the eastern rainforest. Goodman’s mouse lemur, greater dwarf lemur and woolly lemur are some of the reserve’s nocturnal species. It is particularly rich in herpetofauna, with more than 100 species of frog, leaf-tailed geckos and various chameleons.
Nearby Mantadia National Park boasts the agile diademed sifaka with its luxuriant orange, black and white fur, and the rare black and white ruffed lemur, shy and fast moving. Rare birds include mesites, ground rollers, greenbuls, asitys and more. The trails are steeper and more slippery in wet weather than at Perinet. Other nearby, lesser-known reserves provide further opportunities for wildlife viewing.