The Atlantis Rangers, mentioned earlier, usually has a group quarry dive each month. It usually rotates between Millbrook, Hydes, and Bainbridge. The times and locations are on the website.
Atlantis Rangers Visitors Menu Page
Another thought: The Dive Shop, owner of Millbrook, has fun dives at Millbrook quite often. If you call ahead and sign up for the dive, they will find a buddy for you when you get to the quarry.
The Dive Shop - Northern Virginia
Atlantis Rangers Visitors Menu Page
Another thought: The Dive Shop, owner of Millbrook, has fun dives at Millbrook quite often. If you call ahead and sign up for the dive, they will find a buddy for you when you get to the quarry.
The Dive Shop - Northern Virginia