Île aux Aigrettes
Grand Port
Île aux Aigrettes is a small coral-limestone islet located off the south-east coast of Mauritius, serving as a vital nature reserve and scientific research station. Covering 27 hectares, it is the largest islet in the Grand Port bay, situated about 850 meters from Mauritius's coast near Mahebourg. The island protects the world's only remaining fragment of Mauritius Dry Coastal Forest, a once widespread ecosystem now largely lost due to human activity and invasive species. Since its designation as a nature reserve in 1965, concerted efforts have been made to restore native vegetation and reintroduce indigenous animal species. The island is home to rare reptiles such as the Telfair's skink and various colorful day geckos, as well as non-native Aldabra giant tortoises that fulfill the ecological role of extinct Mauritian tortoises by dispersing seeds and aiding forest regeneration. Endemic plants like the ebony tree species Diospyros egrettarum thrive here, alongside other native flora. Île aux Aigrettes offers visitors a unique opportunity to witness conservation in action and experience Mauritius's natural heritage in a protected coastal environment.
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Tip: The best time to visit Île aux Aigrettes is during the dry season when weather conditions are favorable for walking and wildlife observation. Visitors are encouraged to book guided tours in advance to ensure availability and to support conservation efforts. Guided tours provide valuable insights into the island's unique ecosystem and endangered species. Discounts may be available for students, seniors, or groups, so inquire ahead. As the island is a protected reserve, adhere strictly to guidelines to preserve its fragile environment.
Interesting facts
- •Île aux Aigrettes conserves the world’s only remaining piece of Mauritius Dry Coastal Forest.
- •The endemic ebony tree species Diospyros egrettarum is named after the island.
- •Aldabra giant tortoises were introduced to replace the extinct Mauritian giant tortoises and help regenerate the forest.
- •The island is home to rare reptiles including the Telfair's skink and several species of colorful day geckos.
- •Île aux Aigrettes is the largest islet in the Grand Port bay, covering 27 hectares.
History
Île aux Aigrettes was declared a nature reserve in 1965 to protect the last remnants of the Mauritius Dry Coastal Forest and its endemic species.
Over centuries, the island's original flora and fauna were devastated by logging, invasive species, and human activity, mirroring the fate of Mauritius itself.
Conservation efforts since the mid-20th century have focused on restoring native vegetation and reintroducing species that had disappeared locally but survived elsewhere on Mauritius.
The introduction of Aldabra giant tortoises helped restore ecological functions lost with the extinction of native giant tortoises.
Today, the island stands as a symbol of successful ecological restoration and biodiversity conservation.
Place Guide
Dry Coastal Forest
This forest is the island’s unique ecosystem, representing the only remaining fragment of the once widespread Mauritius Dry Coastal Forest. It hosts many rare endemic plants and provides habitat for native wildlife.
Reptile Habitat
The island shelters rare reptile species such as the Telfair's skink and various ornately colored day geckos, critical to the island’s biodiversity.
Aldabra Giant Tortoise Sanctuary1960s
Non-native Aldabra giant tortoises were introduced to fulfill the ecological role of extinct Mauritian giant tortoises by eating and dispersing seeds, aiding forest regeneration.
