This Great Annual Fish Count, join REEF and Key Dives for a free fish ID class, followed by two REEF survey dives ($99 for two-tank dive). Morning check-in for class at REEF Interpretive Center at 9:15am, break for lunch (on your own) at 11am, and check-in for the survey dives at Key Dives at 12:30pm. Locations REEF Interpretive Center: 98300 Overseas Hwy, Key Largo, FL 33037 Key Dives: 79851 Overseas Hwy, Islamorada, FL 33036