A woman takes photos of a koala sculpture during the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists. (Xinhua/Bai Xuefei)

People visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists. (Xinhua/Bai Xuefei)

People visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists. (Xinhua/Bai Xuefei)

Children visit the Hello Koalas Sculpture Trail at Royal Botanic Garden in Sydney, Australia, Oct. 30, 2019. The trail encompasses over 20 one-meter-high koala sculptures, hand-painted by Australian artists. (Xinhua/Bai Xuefei)