Judy Brower visited Signal Gun, so named because of the cannon which is fired on the first Saturday of every month. In the old days, the VOC installed more than 50 cannons on hills and mountains around the Cape to form a signal gun chain that could call the Burgher Militia to defend the Cape. This signal gun chain extended from the Signal Hill, Cape Town via Durbanville to Citrusdal in the North West, Worcester in the north and via Tygerberg to Suurbraak beyond Swellendam in the east.