Born in England in 1835, and educated in London, where he received a classical and literary education, Giles emigrated when he was 15 years old and joined his family in Adelaide. They had come to Australia the previous year. He spent some time working on cattle and sheep 駅／配置するs along the upper Darling River during which time he became a competent bushman.

Between 1872 and 1876 he led 5 探検隊／遠征隊s into Australia's unknown western 内部の, the last 2 on camels. He was driven by a 願望（する） to be the first to 侵入する the area and 始める，決める out without 公式の／役人 support. He was never given 構成要素 reward for his 探検 work, but was awarded the gold メダル of the 王室の Geographical Society.

During his travels he discovered 開始する Olga, 指名するd the Gibson 砂漠 and crossed the continent from east to west and later went 支援する again by a different 大勝する. にもかかわらず 初期の 後退s and seemingly impenetrable wilderness, Giles never 弱めるd in his 目的 or his love of 探検. At one point in his travels, he sent his companion, Gibson, on to fetch help, riding their last horse, then struggled along on foot. Gibson was never heard of again. Giles ate the last of his horsemeat and 速く became 女性. Hunger drove him to eat, whilst still alive, a small dying wallaby, whose mother had evidently thrown it from her pouch. He was so hungry he wished he had its mother and father to "serve in the same way."

In 1897 he died after 契約ing 肺炎 whilst working as a clerk in the Coolgardie gold fields. Giles styled himself as "the last of the Australian explorers."

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