Dove at Martha's Quarry on 7/27/13 to do a couple of refresher dives before a dive trip. Ratings given are relative to a Quarry dive not the Caribbean. Entrance is 584 Quarry Road, Mr. Juliet, TN. No sign at entrance. Fred Massie's telephone number is 860-0000. No real facilities - port-a-potty, parking spots under trees and some picnic tables. Only 4 others diving when we were there. The vis was not bad. It 'is what it is' and served the purpose of a couple quick refresher dives.