The Ferney Trail contributed to the fame of this place. But the excursions and the trekking also make the visitors discover the richness of the valley. This one shelters a native forest belonging to the last natural sanctuaries of Mauritius. Here lives side by side: the Ebony trees, cafés marron, takamakas, cacapoule lianas, the labourdanasia calophylloidest, Eugenia bojeria, araucarias (the despair of the monkey) and other invasive species such as the ravenalala, commonly called the traveller’s tree, all silent but majestic witnesses of the floral inheritance of the island. 

The flora and fauna found in Ferney is the perfect oasis of calm they need to blossom. The kestrel, only raptor having survived in Mauritius, completely disappeared from the East Coast in the Fifties following the spreading of the DDT to fight against malaria, it was considered as the rarest bird in the world in 1974. Its population was made of only four species, of which one egg-laying female. This species was reintroduced in 1987 in the Vallée de Ferney and other sites of the mountain range of Bambous. Its current population is estimated at 600 individuals in the wild, including 200 to 250 individuals located on the East Coast. The Pink Pigeon, the big Cateau Vert, the Merle Cuisinier, the Wood Rooster and soon the Bird Bezel, also made their nests there.

A Conservation Trust – public-private partnership between the Mauritian government and the CIEL group – exists since 2006. It takes care of the restoration and the protection of the natural habitats present in the reserve.

Thanks to the Programme of Micro Financing of the Global Environmental Facility (GEF) and the approval in 2013 of the first strategic project for Mauritius with a maximum of Rs 4.5 million spent, the Valleé de Ferney becomes a must see of conservation and conscientiousness site for the Mauritian biodiversity. Thanks to this support and the propagation campaign, it should on the long-term be resident for 5,000 and 10,000 rare plants.