Biscayne National Park is not really in the Florida Keys, but it is part of the same chain of coral reef that goes to through the Keys. It’s just north of Key Largo and has excellent coral. Dive boats go out of Biscayne National Park and take you to bank reefs, wrecks, and patch reefs. Card Sound is located within Biscayne National Park.
Biscayne National Park is made of 45 small islands or keys. Each is surrounded by thick walls of mangroves, which provide habitat and feeding grounds for millions of baby fish. After they are grown, these fish wind up on the main reef. There are over 200 species of fish in Biscayne National park. The park also offers Glass Bottom Boat tours for your non-diving friends and family. You can get to Biscayne National Park through the town of Homestead, last on the map before the Florida Keys. Entrance to the park is free.