I'm planning a trip to the keys in a few months and I am looking for the location that you have mentioned but I cannot find it (Crawdad Key). Could you please provide more info (lat/long or ??)?
One of the neatest places I've found is the west end of Crawdad Key along the edge of Boca Grande Channel. It's approximately 14-miles west of Key West and provides great protection from winds of nearly any direction. The snorkeling is great, lots of lobster, but lots of big, bull and hammerhead sharks during certain times of the year. I've anchored up on the channel edge inside the anchorage area and caught dinner using nothing more than a small piece of red cloth for bait.