Peros Banhos, Pedro dos Banhos or Baixos de Pêro dos Banhos in old maps, is a formerly inhabited
atoll
An atoll () is a ring-shaped island, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical oceans and seas where corals can ...
in the
Chagos Archipelago
The Chagos Archipelago () or Chagos Islands (formerly the Bassas de Chagas, and later the Oil Islands) is a group of seven atolls comprising more than 60 islands in the Indian Ocean about 500 kilometres (310 mi) south of the Maldives archi ...
of the
British Indian Ocean Territory
The British Indian Ocean Territory (BIOT) is an Overseas Territory of the United Kingdom situated in the Indian Ocean, halfway between Tanzania and Indonesia. The territory comprises the seven atolls of the Chagos Archipelago with over 1,00 ...
, also claimed by
Mauritius
Mauritius ( ; french: Maurice, link=no ; mfe, label=Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It incl ...
.
ÃŽle Yeye, located at the northeastern corner of the atoll, is the island of the
Chagos Archipelago
The Chagos Archipelago () or Chagos Islands (formerly the Bassas de Chagas, and later the Oil Islands) is a group of seven atolls comprising more than 60 islands in the Indian Ocean about 500 kilometres (310 mi) south of the Maldives archi ...
that is closest to the
Maldives
The Maldives, officially the Republic of Maldives,, ) and historically known as the Maldive Islands, is a country and archipelagic state in South Asia in the Indian Ocean. The Maldives is southwest of Sri Lanka and India, about from the A ...
.
Geography

The atoll has a total area of , but a land area of only , made up by some 32 islets. , most of the remaining surface, is occupied by the lagoon, which is connected to the open sea, and the
reef flat
A fringing reef is one of the three main types of coral reef. It is distinguished from the other main types, barrier reefs and atolls, in that it has either an entirely shallow backreef zone (lagoon) or none at all. If a fringing reef grows dire ...
.
Peros Banhos is a medium-sized coralline atoll circled by a regular
coral reef
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
C ...
, similar to those in the neighboring
Maldives
The Maldives, officially the Republic of Maldives,, ) and historically known as the Maldive Islands, is a country and archipelagic state in South Asia in the Indian Ocean. The Maldives is southwest of Sri Lanka and India, about from the A ...
. The diameter of the lagoon, known as ''Baie de Peros Banhos'' in French, is just above 20 km. The circling reef is sunken on its southeastern rim. All islands are flat and sandy and the largest ones are covered with
coconut
The coconut tree (''Cocos nucifera'') is a member of the palm tree family (Arecaceae) and the only living species of the genus ''Cocos''. The term "coconut" (or the archaic "cocoanut") can refer to the whole coconut palm, the seed, or ...
trees.
The largest and most important island in the group is
ÃŽle du Coin. It was home to the Perch Settlement from where the coconut plantations of the Atoll were run. This island was the main port of the atoll and had a jetty to load and unload merchandise.
ÃŽle du Coin was the only island that was settled permanently in Peros Banhos. Other important islands in the atoll that had buildings on them and were also occasionally inhabited were
Grande Soeur,
ÃŽle Diamant,
Île Manoël and
ÃŽle Pierre. All these islands were part of the former coconut plantation run from ÃŽle du Coin.
ÃŽle Yeye, at the northeastern corner of the atoll, is the island of the Chagos that is closest to the
Maldives
The Maldives, officially the Republic of Maldives,, ) and historically known as the Maldive Islands, is a country and archipelagic state in South Asia in the Indian Ocean. The Maldives is southwest of Sri Lanka and India, about from the A ...
. The distance between
ÃŽle Yeye and Gan Island (
Addu Atoll
Addu Atoll, also known as Seenu Atoll, is the southernmost atoll of the Maldives. Addu Atoll, together with Fuvahmulah, located 40 km north of Addu Atoll, extend the Maldives into the Southern Hemisphere. Addu Atoll is located 540  ...
) is .
There have been some changes in the geography of this atoll since the first maps were published in the mid-19th century. ÃŽle St. Brandon, which was covered with coconut trees when the first survey of this atoll was done, is now just a sandbank. On the other hand, in the western rim of Peros Banhos, the island north of ÃŽle Verte was only a small sandbank at the time of Commander
Robert Moresby
Robert Moresby (15 June 1794 – 15 June 1854Some sources mention that he is thought to have died in 1863.) was a captain of the East India Company's Bombay Marine/Indian Navy who distinguished himself as a hydrographer, maritime surveyor an ...
's Survey in 1837, but now it is a medium-sized island covered with vegetation.
History

Peros Banhos was discovered in 1513 by
Portuguese navigator
Afonso de Albuquerque
Afonso de Albuquerque, 1st Duke of Goa (; – 16 December 1515) was a Portuguese general, admiral, and statesman. He served as viceroy of Portuguese India from 1509 to 1515, during which he expanded Portuguese influence across the Indian Ocean ...
. The name of this atoll derives from "Pêro dos Banhos", the name of another Portuguese navigator who died there after his ship ran aground on this atoll.
The earliest and most interesting description of Peros Banhos was written by Manoel Rangel in ''«A Tragédia dos Baixos de Pero dos Banhos»''. He was a castaway from the
Portuguese ship ''Conceição'' under captain Francisco Nobre that ran aground and was smashed on the Peros Banhos reefs in 1556.
165 survivors were left on a flat sandy island of Peros Banhos before
coconut tree
The coconut tree (''Cocos nucifera'') is a member of the palm tree family ( Arecaceae) and the only living species of the genus ''Cocos''. The term "coconut" (or the archaic "cocoanut") can refer to the whole coconut palm, the seed, or the ...
s were there; among them were two women and five Catholic priests. Rangel mentions that there were weeds and grasses and that about ten thousand birds lived on that Island. While the birds lasted the castaways survived, but they began to die in great numbers after having eaten most of the bird population.
According to Manoel Rangel there was drinking water to be found by digging shallow wells in the sand. Also many turtles came to lay
eggs
Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...
on the beach of that island.
Since 1756 ÃŽle du Coin was home to a population of up to 500 people. Most of the inhabitants, the
Ilois, were workers in the coconut plantations and in the oil-producing industry. The Ilois were Christian and there were churches and primary schools in Peros Banhos before the local population was moved away. Their language was a
Creole version of French, known as
Chagossian Creole. There is a small bushy island called ÃŽle Diable on the NW of the atoll. The name of this islet suggests that there were some local folkloric beliefs.
Moresby Island
Moresby Island ( hai, Gwaii Haanas) is a large island () that forms part of the Haida Gwaii archipelago (formerly known as Queen Charlotte Islands) in British Columbia, Canada, located at . It is separated by the narrow Skidegate Channel from ...
, at the northern end of Peros Banhos Atoll was named after
Robert Moresby
Robert Moresby (15 June 1794 – 15 June 1854Some sources mention that he is thought to have died in 1863.) was a captain of the East India Company's Bombay Marine/Indian Navy who distinguished himself as a hydrographer, maritime surveyor an ...
, a British hydrographer who made the first accurate survey of the
Chagos Archipelago
The Chagos Archipelago () or Chagos Islands (formerly the Bassas de Chagas, and later the Oil Islands) is a group of seven atolls comprising more than 60 islands in the Indian Ocean about 500 kilometres (310 mi) south of the Maldives archi ...
in 1837. After Moresby's survey, the first detailed map of Peros Banhos Atoll was published by the Hydrographic Service of the
Indian Navy
The Indian Navy is the maritime branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates sig ...
.
In 1970, the
entire population of Peros Banhos Atoll was expelled by the British Government and sent to live in
Mauritius
Mauritius ( ; french: Maurice, link=no ; mfe, label=Mauritian Creole, Moris ), officially the Republic of Mauritius, is an island nation in the Indian Ocean about off the southeast coast of the African continent, east of Madagascar. It incl ...
. More recently, the islands have been investigated as a possible location for resettlement, although access is currently prohibited.
In February 2022, exiled islanders made their first unsupervised visit to the island, following
international court rulings and a majority vote in the
UN General Assembly
The United Nations General Assembly (UNGA or GA; french: link=no, Assemblée générale, AG) is one of the six principal organs of the United Nations (UN), serving as the main deliberative, policymaking, and representative organ of the UN. Cur ...
. Prime Minister of Mauritius,
Pravind Jugnauth
Pravind Kumar Jugnauth (born 25 December 1961) is a Mauritian politician serving as the prime minister of Mauritius since January 2017. Jugnauth has been the leader of the Militant Socialist Movement (MSM) party since April 2003. He has held a ...
, said this was not to embarrass the UK, but "merely an exercise of our sovereignty over part of our territory and that is in accordance with international law."
Nature Reserve

The part of the atoll east of a line drawn between the easternmost point of land on Moresby Island (north) and the easternmost point of land on Fouquet Island (south) fall within the Peros Banhos Atoll Strict Nature Reserve.
Entry into this and into the other Strict
Nature Reserve
A nature reserve (also known as a wildlife refuge, wildlife sanctuary, biosphere reserve or bioreserve, natural or nature preserve, or nature conservation area) is a protected area of importance for flora, fauna, or features of geological or ...
s, and within of the islands therein is prohibited and activities are clearly proscribed by the
British Indian Ocean Territory
The British Indian Ocean Territory (BIOT) is an Overseas Territory of the United Kingdom situated in the Indian Ocean, halfway between Tanzania and Indonesia. The territory comprises the seven atolls of the Chagos Archipelago with over 1,00 ...
.
Yachtsmen are advised not to even anchor within the limits of the Peros Banhos Atoll Strict Nature Reserve.
List of islands
With some 32 islets, the Peros Banhos Atoll encompasses about half of all
islands in the Chagos Archipelago. The individual islands and islets are listed clockwise, starting in the south:
Passe de l'ÃŽle Poule is also called ''Passe Elisabeth'' on older maps.
The islands in the eastern part are part of the Peros Banhos Strict Nature Reserve, except ÃŽle De La Passe and Moresby Island.
Notable former residents
*
Louis Olivier Bancoult Louis Olivier Bancoult (born 1964) is a Chagossian activist who is the leader of thChagos Refugee Groupref name=":0"> (CRG).
Biography
He was born in 1964 on the island of Peros Banhos in the Chagos Archipelago, from where he was forcibly removed ...
*
Jessy Marcelin
*
Clément Siatous
References
Literature
* R.P. Roger Dussercle S. Sp., "Archipel de Chagos", En Mission 10 Novembre 1933 – 11 Januar 1934, Port Lois – Île Maurice: The General Printing & Stationery Cy. Ltd., T. Eclapon, Administrateur, MCMXXXIV
External links
Pictures of Peros Banhos
{{Coord, 5, 20, S, 71, 51, E, display=title
Atolls of the Chagos Archipelago
Nature reserves