Isla Bartolomé is an uninhabited subantarctic island. With an area of 93 ha and a maximum height of 190 m it is the largest of the Chilean Diego Ramírez Archipelago, being more than twice the size of the second largest - Isla Gonzalo, lying in the Drake Passage between the continents of South America and Antarctica. It is an important breeding site for black-browed (over 35,000 pairs) and grey-headed (over 9000 pairs) albatrosses, as well as for southern giant petrels.