In the mountains of eastern Madagascar, Andasibe-Mantadia National Park encompasses a stretch of primary rainforest that hosts an incredible array of biodiversity, most famously the indri, the largest of the lemurs.
Living in small family groups, these incredible animals can be heard for miles around when they sing, a haunting whale-like howl that can be experienced up close in the Analamazaotra Special Reserve where a number of habituated indris can be seen high in the trees.
There are ten other lemur species encounter in the park, including diademed sifaka, black-and-white ruffed lemur, grey bamboo lemur and the rarely spotted but fascinating aye aye. Reptiles, such as tree boas, geckos and numerous chameleons, and more than 100 bird species abound in the humid forests.
Around four hours east of Antananarivo by comparatively good roads, it is one of the most easily accessible protected areas in the country and one of its most visited. Accommodation choices are limited, but for many the journey is worth it solely to witness the indri sing.