It is the best park for the indri-indri or Babakoto in Malagasy, the largest lemur, and two of the 62 resident groups have been habituated, making them easy to see. There are eight other species of lemur in Andasibe and the most commonly seen include the grey bamboo lemurs, brown lemurs and woolly lemurs. There are some wonderful chameleons in the reserve including the two-foot long Parson’s chameleon and the tiny nose-horned chameleon. Frogs are plentiful and birding highlights include Madagascar blue pigeon, coral-billed nuthatches and the Madagascar long-eared owl.
All exploring is done on foot along trails that weave through the forest: expeditions can vary in length from one hour to five. Walks are particularly rewarding in the early morning when indri calls, sounding rather like a weird forest whalesong, echo through the air.
There are also possibilties to make nocturnal hike in this area