Grace and her family went on a holiday around Australia, visiting many places including Uluru, Turquoise Bay, Sydney, and Kakadu. Sydney is the largest city in Australia with almost 5 million people. It is known for the Sydney Harbour Bridge, one of the world's most famous bridges, and the Sydney Opera House, one of the most famous buildings in the world. Some popular things to do in Sydney include climbing the Harbour Bridge, visiting the Opera House, Taronga Zoo, Sydney Aquarium, and Bondi Beach.