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.
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?
In 2001, scientists taking a plant inventory in Biscayne National Park discovered a population of semaphore pricklypear cactus, one of the world's rarest plants. Previously known as only 9 plants in the lower Florida Keys, the new population numbered 570 plants...over 60 times the previous count.