Alphonse

Situated 400km southwest of Victoria. It consists of 174 hectares of land and a lagoon of 540 hectares. The Alphonse group includes St. Francois atoll, comprising two islands: Bijoutier and St. Francois.

African Banks, Etoile & Boudeuse

​African Banks (235 kilometres from Victoria), Étoile (305 kilometres) and Boudeuse (330 kilometres) are uninhabited islands of the Amirantes. In 2022, the government leased these three islands to IDC for conservation purposes. 

Assomption

Lies 1,140km southwest of Victoria. With an area of 1,171 hectares, it is the largest outer island of Seychelles after Aldabra, about ten per cent larger than La Digue.

Astove

Situated 1,045km southwest of Victoria, and stands on the same volcanic basement as Cosmoledo. It is one continuous landmass of 661 hectares, surrounding a shallow lagoon of approximately 5 sq km.

Coetivy

Lies 290km south of Victoria. Excluding the raised limestone islands of the Aldabra group, Coetivy is the largest coral island of Seychelles at 931 hectares.

Cosmoledo

Lies 1,030km southwest of Victoria, 35 km north of Astove and 115km southeast of Aldabra. It is a raised coral atoll of 460 hectares and a lagoon of 14,500 hectares.

Desnoeufs

Situated 325km southwest of Victoria, and 12km southwest of Marie Louise, its nearest neighbour. It has an area of 35 hectares and has a sandstone core.

Desroches

The largest island of the Amirantes at 394 hectares, and the closest to the granitic islands, lying 230km southwest of Victoria. It is a sand cay on the western edge of a submerged atoll, 20km in diameter.

Farquhar

Lies 770km south-southwest of Victoria. It is the largest true atoll of Seychelles, at about 17,800 hectares. There are ten islands, North Island and South Island making up 97% of the landmass of 799 hectares.

Marie Louise

Situated 310km southwest of Victoria, it measures 52.5 hectares. It is an oval-shaped island about 1km by 0.5km, similar in structure to Desnoeufs.

Ile Plate

Lies 140km south of Victoria. It is a small island of only 54 hectares. It was named for its low topography and shape, similar to a plate.

Poivre

Lies 270km southwest of Victoria. It is an atoll of 3 islands: Poivre Island (111 hectares), South Island (137 hectares) and Florentin (7.4 hectares.)

Providence

A platform reef 710km south-southwest of Victoria. It lies 294km south of St. Francois. It comprises of Providence Island (157 hectares) and Bancs Providence (71 hectares.)

Remire

Situated 245km southwest of Victoria and 25km south of African Banks. It is a small, oval-shaped island of just 27 hectares.

Silhouette

The only IDC island within the granitic group. It lies 20km north of Mahe, and at 1,995 hectares it is the third largest granite island, and the fifth largest of Seychelles as a whole.