Fort Henry at Kingston, Canada, which guards the entrance of the Rideau Canal is both a National Historic Site of Canada and is part of the UNESCO World Heritage Site Rideau Canal. The large fort is the second fort built on this site and was built from 1832 - 1836 to counter a threat from the USA.
During the summers, the Fort Henry Guard (which has been around 1938) are part of the interpretation program run at the site. This shot shows the Guard gunnery crew cleaning up the 6-pound guns at the end of the day.