The Blue Mountains National Park in Sydney was once praised by Queen Elizabeth II as the most beautiful place in the world. There are a large number of eucalyptus trees (eucalyptus trees), and their volatile oil droplets are reflected in the air through the sunlight to reveal a blue mist, hence the name Blue Mountain. Eucalyptus leaves are also the food of the Australian national treasure "koala." The park has spectacular three sister peaks, as well as beautiful waterfalls and thrilling canyons. You can take three different cable cars to travel to and from different attractions to experience different visual experiences. There are also many creative sculpture exhibitions in the rainforest area, which is a good place to relax.