I've been going to Key West nearly every year since 1976, and while many things have changed, there are lots of things that seem to remain the same.
One of the things I noticed last winter was the water quality has slowly, but surely, deteriorated. I remember when I dove the reef at Sand Key and the underwater visibility averaged about 80 to 100 feet most days. Now, a good day is 30 feet at best.
For a protected anchorage, though a long dinghy ride to Key West, Mule Key Basin is great. Depths average about 5 to 7 feet at low tide, it's surrounded by flats, there's an easy to access, marked entrance from the North West Channel and best of all, you usually have the entire place to yourself.
Sure wish I were there right now - especially when I look at the cesspool waters of Chesapeake Bay.
Nice photos young man,