Îlet à ramiers or Ramiers is an uninhabited islet in Trois-Îlets. It is a rock whose escarpments are sheer on three sides. It is conical in shape. It rises 43 meters above sea level. It has been part of the Conservatoire du Littoral since 2010. It is of recent Stombolian volcanic origin (a few hundred thousand years old). It is made up of massive lava flows and slag fallout.
A small sandy cove develops at its southern end.
The 3-hectare islet is occupied by two shelters and a fort listed as a historic monument, which are still well preserved.
Once owned by the French Navy, it bears the remains of an 18th-century fort built between 1740 and 1746. Today, this military site is off-limits to the public.
In 1708, the islet was used as a quarantine site during the yellow fever epidemic.
A colony of Caribbean iguanas (Iguana délicatissa) was introduced here. For this reason, it benefits from a biotope protection decree for the conservation of the Lesser Antillean iguana. Îlet à Ramier is strikingly heterogeneous. The succession of interlocking cycles on the scale of plant evolution (between the shrubby state and the sylvatic (plants that grow naturally under forest trees) incipient) could serve as an example of restoration of desiccated eroded areas.
The arboreal physiognomy is the main feature of the landscape component of this islet. On the eastern side of the islet, the trees are mainly mapou tree, pink manjack tree, Citharexylum Spinosum tree, Crateva tapia (the main interest of this islet), savonnette and bois-vinette, and tamarind in patches. Next to the fort, there is a monumental Bombacaceae tree and a sizeable population of Cratevia Tapia tree.
Fauna includes lizards (anolis), crabs (red rock crab (Grapsus grapsus), blackback land crab (Gecarcinus lateralis), Caribbean hermit crab and land crabs) and insects (booklice).
Among birds, Gray Kingbirds (Tyrannus dominicensis) and Tropical mockingbirds (Mimus gilvus) have been observed on this site, and other protected species such as crested and Antillean crested hummingbirds (Orthorhyncus cristatus) and bananaquit (Coereba flaveola) are also present.
Islet Ramiers can be visited by tourists. Excursion companies frequently offer tours of the islet and its fortress.