SYDNEY, July 24, 2016 (Xinhua) -- Tourists ride camels at Bondi Beach in Sydney, Australia, July 24, 2016. Camels were imported to Australia in the 19th century for transport and heavy work in the outback. With the introduction of motorised transport in the early 20th century they were released into the wild. Australia now has the largest population of camels in the world. (Xinhua/Hongye Zhu)