 Fort Glanville Historical Association operates the park under license and conducts open days in the park , <unk> the past operation of the fort including military drill and the firing of period weapons . The Association , park service , other volunteers and various grants have all helped ensure the fort is presented in close to original condition . It is the most complete 19th Century fort in Australia , and one of very few in the world that remains in original condition . <unk> the fort to Semaphore jetty is the Semaphore and Fort Glanville Tourist Railway , a 457 mm ( 18 @.@ 0 in ) gauge passenger steam train operated by volunteers from the National Railway Museum . 
