Laying in the sheltered waters of Oyster bay in Gulf St Vincent, the Jetty is 308 metres long, and was built and opened in 1905. Now a popular fishing spot, the jetty is also an excellent snorkelling and dive site. Home to crabs, nudibranchs and a huge range of fish species, the Stansbury Jetty on the Yorke Peninsula in South Australia is an easy to access dive site and well worth a look.