Nestled on the east coast, in the heart of the Analanjirofo region, Ambatovaky is Madagascar’s largest Special Reserve, covering 78,139 hectares of deep valleys, steep slopes, and clear rivers.
This natural mosaic preserves one of the last large dense low- and mid-altitude rainforests on the Big Island.
The tropical, per-humid climate, with no dry season, has sculpted a diversity of exceptional habitats and is home to some of Madagascar’s richest endemic biodiversity.
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Ambatovaky protects many flagship and strictly endemic species, such as the Indri indri, the Diademed Sifaka, and the Black-and-white Ruffed Lemur, as well as remarkable birds such as the Madagascar Serpent Eagle (Eutriorchis astur) and the Madagascar Pond Heron (Ardeola idae), and rare and unique island flora.
🗺️ Ambatovaky covers 78,139 hectares and ranges in altitude from 314 to 1 175 meters.
🐒 11 species of lemurs, many of which are strictly endemic.
🦜 The Reserve is home to 109 species of birds, 42 amphibians, et 33 reptiles known.
🌧️ The climate is hot and humid, with 2 199 mm of average annual precipitation..
💧 Several large rivers flow through the reserve, including the Marimbona.
🚫 Access is only possible by pirogue or canoe from Soanierana Ivongo.
📅 The Special Reserve has been in existence since 1958.
Created by decree 58-10 of October 28, 1958, the Ambatovaky Special Reserve is located on Madagascar's east coast, in the province of Toamasina, Analanjirofo region and Soanierana Ivongo district.
🌳 Deep valleys, slopes, plateaus
🌳 Low- and mid-altitude evergreen forests
💧 Abundant rivers (Marimbona, tributaries)
🐒11 lemurs, including Indri indri, Propithecus diadema, and Varecia variegata
🦜109 birds including Eutriorchis astur, Ardeola idae
🐾Carnivores(Fossa, Galidia, Galidictis, Viverricula)
🌳Dense humid forests (low and medium altitude)
🌳Rare palm trees (Dypsis, Orania)
🌳Endemic species: Bembiciaceae, Sarcolaenaceae
🌳Ferns, savoka, epiphytes
Despite the majesty of its forests, Ambatovaky faces persistent challenges that threaten its natural balance.
Slash-and-burn agriculture, deeply rooted in local practices, continues to encroach on the primary forest. With each plot of land cleared, unique habitats disappear, taking with them a part of Madagascar's living heritage. Savoka, secondary vegetation, is gradually replacing the original forest and bears witness to this constant pressure.
In the shadows of the undergrowth, hunting targeting lemurs and birds endangers some of the Reserve's most emblematic species.
The search for crystals or gold is not without consequences. Mining exploration activities profoundly disrupt local ecosystems: they fragment habitats, degrade soils, and leave lasting scars on an already battered landscape.
Beyond the most visible threats, Ambatovaky must contend with other pressures, often more subtle but equally decisive for the future of the reserve.
The forest provides many products that are essential to the communities' livelihoods: fruits, medicinal plants, materials. But overexploitation, even on a small scale, depletes resources and weakens natural regeneration, ultimately compromising the balance of the ecosystem.
The gradual expansion of inhabited areas and undergrowth cultivation are slowly eroding the protected area. These developments, often motivated by the need for fertile land, are eating away at the forest and complicating its sustainable management.
Signs torn down, markers moved, paint erased: infrastructure intended for management and awareness-raising is sometimes damaged.
Ambatovaky is more than just a biodiversity sanctuary: it is a stronghold for lemurs, a green lung for the entire eastern region, and the promise of a forest that will no longer recede. Thanks to increased patrols, there will be no clearing of primary forest in 2024! Pressure is easing: fewer fires, fewer violations, more restoration. Field teams, with the support of local communities, are fighting tirelessly to preserve this wealth—and it's working.
Preserving the Ambatovaky forest means taking daily action against deforestation, fires, and illegal logging.
Our patrols traverse steep trails, monitor every corner, and prevent threats before they arise.
Success story
No clearing of primary forest in 2024—a victory celebrated by the entire team, the result of joint mobilization and reinforced patrols thanks to new resources from the REDD+ carbon fund.
🚶♂️ Joint and reinforced patrols: Increased surveillance thanks to new GPS devices and REDD+ funds, targeted interventions in sensitive areas.
🔥 Fighting fires and land clearing: Awareness campaigns and development of specifications to control fires in areas of sustainable use.
🌱 Ecological restoration: Active and passive restoration covering more than 238 hectares, with planting of local seedlings and monitoring of regeneration.
🦧 Ecological monitoring: Annual monitoring of lemur populations and other flagship species, with adjustments to protocols in 2025 (e.g., new transects, observation times).
🛰️ Use of drones: Monitoring fires and pressure in isolated areas, rapid detection of violations
🌱Creation of the Renewable Natural Resource Management Transfer (TGRN)
🏞️ Restructuring of CLPs and COSAPs: New committees established, greater involvement of local communities.
💧 Community development: Construction/rehabilitation of micro-dams, agricultural training (market gardening for CLPs), improvement of educational infrastructure.
🏫Awareness-raising in schools and villages: Workshops on conservation, climate change, and the benefits of protected areas: more than 700 students/villagers reached in 2024.
📚 Environmental and Social Management Plan: Currently being finalized, with stakeholder involvement.
Fund Madagascar National Parks' five-year strategic plan to ensure the sustainable management of marine and terrestrial protected areas.
Ensure sustainable financing and effective management of PAs by supporting biodiversity conservation while involving local communities
Contribute to the fight against climate change by reducing greenhouse gas emissions/preserving the world's biodiversity, mitigating the impacts of climate change and promoting sustainable development.
Depending on your means of transport :
⚠️ No hotel or restaurant on site: logistical arrangements must be made before departure.
🥾Bring bush gear: Lightweight tent & sleeping bag, walking shoes/boots, raincoat & rain gear, mosquito repellent, etc.
🎒 Trek level: experienced (rugged terrain, humid climate, no marked trails).
👥 Accompaniment by an MNP agent is mandatory: contact the Madagascar National Parks team in Soanierana Ivongo before any visit.
🕰️ Allow time for organization: all visits require prior authorization and the presence of a Reserve agent.
Download the reference document to find out more about park fees and charges.
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