Have dove this particular quarry over 20 times in the past seven years. Each year, it feels colder in the 40+ range. Algae has been a problem for quite a while now, but it is certainly a good place to train yourself for the lower vis type diving. Without having dived this quarry, I would not have been prepared for the black water diving in the Cooper River a few years ago. Anthony and the other guys seem to always want to help out and it's always a relief to have courteous hosts as I have never seen in Madison. Never too crowded as we have experienced with the "newbies" lining up the pier at Bluewater.