Extending 1.841 kilometres over the protected waters of Geographe Bay, the heritage listed Busselton Jetty is the longest timber-piled jetty in the Southern Hemisphere and is home to one of six Underwater Observatories in the world!
The Underwater Observatory will be closed from 28 July to 5 September 2025 while we install a new lift to enhance accessibility! While it’s temporarily closed, there’s still so much to enjoy — stroll the iconic Jetty, hop aboard the solar-powered Train, explore the Marine Discovery Centre, and browse local treasures at the Interpretive Centre.