Rottnest Island is a tropical paradise 19 km off Perth's coast, home to approximately 10,000 quokkas - the happiest animals on Earth. These friendly marsupials show no fear of humans and are famous for their smiling selfies. The island features pristine white sand beaches and crystal-clear turquoise waters perfect for swimming, snorkeling, and cycling. Cars are banned on the island, creating a uniquely peaceful atmosphere. Rent a bike to explore 63 beaches and 20 enchanting bays. The island also hosts a colony of New Zealand fur seals and abundant marine life.