See Lemurs in Madagascar

The indri call is audible from 2 kilometres away. You will hear it before you see the animal: a wailing territorial advertisement that builds in overlapping harmonics between family members, somewhere between whale song and something you can’t categorise. Indri are the largest living lemur, weighing up to 9 kilograms, black and white, with round yellow eyes and almost no tail. Hearing them before dawn in the Andasibe forest, with the sound bouncing off wet trees, is one of the more disorienting wildlife experiences available in the world today.

Madagascar has around 100 lemur species, all found nowhere else on Earth. They represent the outcome of 88 million years of isolated evolution since Madagascar separated from the African mainland. What that isolation produced is a family of primates found in no other forest system – small and large, nocturnal and diurnal, from the 30-gram mouse lemur to the 9-kilogram indri. More than a third of lemur species are critically endangered; the forest they depend on has been reduced by more than 90% over the past century.

Where to See Them

Andasibe-Mantadia National Park is the most accessible option from Antananarivo (the capital, called Tana): 140 kilometres east on the RN2 road, about 2 hours by private transfer or 3 hours by shared bush taxi. The park holds indri, sifakas, and multiple nocturnal species. Guided walks in the Andasibe section typically encounter indri groups; the Mantadia section to the north requires a longer trek with fewer guarantees but more primary forest.

Park entry costs around USD 25 for two days. Guides are compulsory and cost around USD 20-30 per day. This is non-negotiable money well spent: a guide scanning the canopy has a success rate with indri sightings that would take a solo visitor ten times as long to match.

Ranomafana National Park, 240 kilometres south of Tana (5-6 hours on roads that are occasionally very bad), has greater species diversity: the golden bamboo lemur, discovered here in 1986, the greater bamboo lemur, and the red-bellied lemur among others. The forest is steeper, denser, and wetter than Andasibe. Good waterproof gear is essential.

Anja Community Reserve near Ambalavao is the most accessible ring-tailed lemur site on the main RN7 route south: reliably good sightings, community-managed, entry around 40,000 Ariary. Worth two hours as a main-road stop.

Practical Realities

Madagascar is genuinely challenging. Roads between major sites range from acceptable to appalling. Fuel shortages occur. Medical facilities outside Tana are minimal. Travel with a guide or through a reputable local operator for anything outside Andasibe.

Best months: July through October (dry season). November through March brings cyclone risk in coastal areas and flooding that makes many road routes impassable.

Entry visa (30 days, extendable) is available on arrival at Ivato International Airport for around USD 35.

For food in Tana: Café de la Gare near the train station does reliable Malagasy cooking at local prices. Malagasy cuisine is heavily rice-based – zebu beef stew (romazava), braised vegetables, pickled greens. Get used to it early; it improves quickly.