Key West night macro from shore?

I have two nights in Key West in early January but I will be tied up during the days. It seems likely that none of the operators will be offering night dives then. I read somewhere that one outfit only does night dives on Fridays for some reason. I was wondering if there is anywhere that I can find decent enough visibility for some macro. The South side looks like it would be very weather dependent. How is the North side. I know there are no reefs there but I don't mind even snorkeling on sand as long as the water is not a soup. Can anyone tell me what to expect? Thanks.