Cannons Across the Marsh Wednesday, Jul 4, 2012 10 AM to 4 PM This event has already occurred.   (Archived) Join the Garrison for a day of artillery drills, musket firings, and soldier's life activities to honor Independence Day. $3.75- $6.50 912-437-4770. Location: Fort King George Historic Site 302 McIntosh Rd SE Darien, GA 31305 Directions: GPS Coordinates: N 31.3644180 | W -81.4130690 Located in Darien, 3 miles east of I-95 exit #49. Fort King George Historic Site 302 McIntosh Rd SE Darien, GA 31305   PREVIOUS DATES  Wednesday, Jul 4, 2012 Saturday, Jul 2, 2011