The Republic of the Seychelles is made up of 115 islands covering 459 square kilometres of total landmass. Scattered approximately 1,600km off the coast of Kenya, D’Arros Island and St Joseph Atoll lie roughly 225km southwest of Mahé at 5°S of the equator as part of the Amirantes Island group of the Outer Islands of the Seychelles.
The sandy beaches of D’Arros wrap 5km around and its highest elevation is 3m. D’Arros Island is separated from St Joseph Atoll by a deep channel to the east, roughly 1km wide and about 60-70m deep.