The taking of lobsters is prohibited at any time of the year in the Biscayne Bay-Card Sound Lobster Sanctuary. The sanctuary is an area designated by the State of Florida to provide year-round breeding habitat to help ensure the viability of this species. Although the sanctuary overlaps much of Biscayne National Park, the park and the sanctuary are two different entities.
The sanctuary boundary extends from the northern edge of Matheson Hammock Park east to the southern tip of Cape Florida (Key Biscayne). From Cape Florida it runs south to Soldier Key then along the eastern high water line of Soldier Key, the Ragged Keys, Boca Chita Key, Sands Key, Elliott Key, Old Rhodes Key, Swan Key, Palo Alto Key, and Angelfish Key to the southern edge of Pumpkin Creek.
It then turns north and then south, running along the high water line of Key Largo, following the western shore of Pumpkin Creek, the southern shores of Angelfish Creek and Little Pumpkin Creek, and the eastern edge of Card Sound to the Card Sound Bridge. From the Card Sound Bridge it runs north along the western high water lines of Little Card Sound, Card Sound, and Biscayne Bay to the northern boundary of Matheson Hammock Park.
All natural, artificial, and tidal creeks between the islands and along the mainland are included in the sanctuary and are closed to lobstering.
Lobsters may be taken east of the islands during the legal seasons.
Legally taken lobsters may be transported through the Sanctuary as long as no one from the boat is overboard (in the water) while inside the sanctuary.