The Busselton Jetty, located in Busselton, Western Australia, is the longest timber-piled jetty in the Southern Hemisphere, extending 1.8 kilometers (1.1 miles) into the Indian Ocean. Built in 1865, it has a rich maritime history and is now a popular tourist attraction. Visitors can walk or take a small train to the end of the jetty, where an underwater observatory provides stunning views of marine life in a natural reef environment. The jetty also hosts activities like fishing, snorkeling, and diving, making it a vibrant hub of culture and recreation.