Nosy Tanihely National Park is a small volcanic island located 8.5km south of Nosy Be, in the Commune of Nosy Be, Prefecture of Nosy Be in the DIANA Region.
Covered with degraded humid tropical vegetation, the island is nevertheless of great scenic and wildlife value, both on land and at sea.
Management of the park is entrusted to the “Tanihely National Park” association, made up of three institutional entities: Madagascar National Park, the Office Régional du Tourisme de Nosy Be and the Commune Urbaine de Nosy Be.
Despite its small size, Nosy Tanihely is renowned for its remarkable marine and terrestrial biodiversity. Scientific studies confirm that the site is one of Madagascar’s most important in terms of marine life.
Nosy Tanihely is a small island paradise. An astonishing variety and quantity of multi-colored fish will delight divers and snorkelers.
On the 10-hectare islet, the flora is made up of 38 families divided into 81 genera and 89 species.
The terrestrial fauna includes 19 species of birds, 13 species of reptiles, one species of bat, Pteropus rufus, and two species of lemur, Eulemur macaco and Eulemur fulvus.
The fringing reef of Nosy Tanihely National Park is extremely rich in marine biodiversity. The 2002 International Conservation RAP report (CI RAP, 2002) came up with the following results for the Nosy Tanihely site: 154 fish species, 110 coral species, 81 mollusc species and 02 marine turtle species (Chelonia midas and Erethmochelys imbricata).
Both marine turtle species are listed as critically endangered by the IUCN (International Union for Conservation of Nature).
Main ecological features:
Nosy Tanihely National Park belongs to the Western Marine Ecoregion.
Like Nosy-Be and the surrounding area, Nosy Tanihely has a warm, humid climate.
Climatic parameters are represented as follows:
– Altitude 40m
– Depth approx. 35m
– Tidal range 3m
– Surface current coefficient 116
– Salinity 35%o
– Water potential 8
– Hot, humid climate
– Annual precipitation 140mm.
– Dry period 6 to 8 months (May to November)
– Two wind regimes: Talio and Varatraza, gusts > 200km/h during cyclone
– Temperatures 28°C/23.25°C (dry season)
Nosy Tanihely has no springs and its only freshwater supply comes from rainwater collected in a cistern.
154 espèces de poissons dont Cephalopolis miniata, Pomacantus imperator et Pterois radiata
81 espèces d’invertébrés dont des espèces d’oursins dont Diadema setosum, des Holothuria atra, Actinopyga milliaris, Protoreaster lincky, Schylla serrata et Stichopus variegata ; 2 espèces de tortue marine : Chelonia mydas et Erethmochelys imbricata.
Climate change, notably warmer ocean water temperatures leading to coral bleaching, illegal fishing,
Marine erosion, marine pollution, sedimentation
A number of initiatives have been planned to address the environmental challenges and human pressures on the park.
Coral restoration project
Mangrove restoration project
Forest restoration project
Installation of FADs (Fish Aggregating Devices) in fishermen's fishing zones to increase fish products in the vicinity
Involvement of communities in improving and restoring natural resources near the Park,
Installation of biodigester kits as an alternative to mangrove firewood.
Installation of road infrastructure and street lighting at municipal level
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
Jardin de Zoo de Zurich : finances Masoala's activities from 2017 to 2027
GEF6: specifically finances activities linked to the conservation of MPAs and the development of communities around these MPAs for 2 years (2025-2026).
Depending on your means of transport :
Leave Antananarivo, Diego or Mahajanga by car (bush cab or private car) to reach the port of Ankify (Ambanja), the departure point for speedboats.
Parc Nosy Tanihely is accessible all year round.
Download the reference document to find out more about park fees and charges.
To make the most of the Park, you'll need :
Immerse yourself in the unique biodiversity of our national parks and discover our commitment to conservation and ecosystem protection. Marvel at unspoilt landscapes and exceptional wildlife. Together, we create a model of responsible and beneficial coexistence