#indian ocean
- Aldabra — One of the largest coral atolls in the world, located in the Indian Ocean, belonging to the Republic of Seychelles and designated as a UNESCO World Heritage site. The area is globally renowned for its pristine ecosystem, untouched by heavy human activity, hosting the world's largest population of giant tortoises (Aldabrachelys gigantea).
- Amirante — The proper name of a coral island group in the Indian Ocean (Amirante Islands), structurally belonging to Seychelles, discovered in fifteen hundred and two by the navigator Vasco da Gama and named in honor of his admiral title; the name also refers to the adjacent oceanic trench. As a fixed entity in cartography, it is used exclusively as a proper noun and is capitalized.
- Andaman — An archipelago consisting of a chain of volcanic and coral islands located in the eastern Indian Ocean, separating the Andaman Sea from the Bay of Bengal, politically belonging to India (as part of the Andaman and Nicobar Islands Union Territory). The region is globally renowned for its spectacular marine and terrestrial biodiversity, pristine rainforests, and the protection of isolated indigenous tribes living in archaic stages of prehistoric development.
- Antsiranana — A strategically highly important port city located at the northernmost tip of Madagascar, situated within a spectacular natural bay; historically known as Diego-Suarez, it represents the capital of the Diana region and a major commercial hub on the Indian Ocean.