• Purple, yellow, gold and orange sponges and soft corals wave against a turquioise sea.

    Biscayne

    National Park Florida

There are park alerts in effect.
hide Alerts »
  • Boat Tours, Paddle-craft Rentals and Select Conveniences Temporarily Unavailable

    Glass-bottom, snorkel, diving and island boat tours, and rentals for canoes and other paddle-craft, are temporarily unavailable. The park is working to resolve the issue as soon as possible and regrets the inconvenience. Limited snack items are available.

Hydrologic Activity

Biscayne Bay is shallow and well mixed with only a very weak density gradient. This horizontal density gradient is salinity based, resulting from the freshwater runoff of canals on the western side. Salinity in the bay is controlled by a pronounced wet-dry seasonal dynamic and is highest in June when rainfall is low and evaporation high.

Did You Know?

The Jones family on the porch of their Porgy Key home.

Israel Lafayette Jones purchased land on Porgy Key, at the southern end of Biscayne National Park, in 1898. He, his wife Mozelle and their sons Arthur and Lancelot carved out a life for themselves by farming pineapples and key limes, eventually owning most of the land surrounding Jones Lagoon. More...