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

    Biscayne

    National Park Florida

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  • 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.

Environmental Factors

Thespesia populnea is a commonly observed invasive species

Many nonnative animals and plants, such as thespesia, are observed in Biscayne National Park.

NPS

John Donne wrote that "no man is an island," and the same can be said for National Parks. While all parks are affected to some extent by what goes on in adjacent areas, the situation is magnified in a marine park where water flowing across boundaries can provide easy access for pollutants, exotic species, and large numbers of visitors not confined to traditional throughways like trails and roads.

Did You Know?

sea squirts on a mangrove root

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.