Cottrell Reef is a good alternative dive if the weather is blowing from the
Atlantic side. Protected by the miles of grassy banks called the Lakes. The
ledges and banks of Cottrell Reef run for miles, and are covered with
gorgonians, and sponges. You will find scattered clusters of coral heads.
Her you will also find lots of pits, cervices, and coral caves. That have
been carved out by wave action over the years. You see a good variety of
juvenile fish with adult Parrot, and Snapper. The visibility is between
15-40 feet. You have little current or surge even on rough days.
Clyde's Key West Scuba Diving