Esmeralda Bird Island is home to Esmeralda, the oldest tortoise in the world. Born in 1771 and weighing nearly 63 stone, she has a place in the Guinness Book of World Records. © Ariel Fuchs
One hundred and fifty thousand giant tortoises live on Aldabra island, the world's largest atoll (22 miles long and 8 miles wide) and a Unesco world reserve since 1982. You can also see some in an enclosure on La Digue, on Union and in Victoria's botanical garden, on Mahé. Many hotels also have a few specimens, to the delight of their guests. Turtles are just as numerous on the archipelago and are also protected. Hundreds of them reproduce each year on the beaches of Aldabra.
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