 Things to be seen include big belly sea horses, sea dragons, pygmy pipehorses, red Indian fish and all the usual fish seen around Sydney.People have also seen seals and grey nurse sharks at times and in late winter Port Jackson sharks are very common.As at 14 December 2000, the archaeological potential to reveal information not available from other sources about the construction and use of the Fort is high, as is the potential to derive information that cannot be found on other sites.