Elliott Key Harbor and Campground Closed Until Further Notice
While the harbor and campground are closed, University Dock remains open for day use only. The park approved a contractor to complete repair work. The contractor is in the process of acquiring necessary permits and hopes to begin repairs soon. More »
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?
Tunicates, or sea squirts, live on the roots of the red mangrove tree. These simple animals survive by filtering plankton out of seawater, and hold promise as the source of potent drugs used to fight tumors. Watch for them when snorkeling along Biscayne National Park's mangrove-fringed shoreline.