The Defence of Sydney Tour is an opportunity to walk in the footsteps of the men and women who served at North Fort. Accompanied by a knowledgeable guide, you will marvel at historic gun emplacements, once capable of firing 26.4km, and descend into a 200-metre-long military tunnel complex. Finally, our guide will demystify an underground bunker once shrouded in secrecy: The Plotting Room. As you explore this facility, concealed within bushland, you’ll hear how our specialist volunteers faithfully restored it.