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.
Elliott Key Harbor and Campground Closed Until Further Notice
Contractors began work to repair damaged boardwalks and marina at Elliott Key and the visitor center grounds. The marina and campground at Elliott Key are closed until the repairs are complete. University Dock on Elliott Key remains open for day use only. More »
Sea Turtles: Basic Biology & Background
Quick Facts about Sea Turtles
1. Sea turtles have been around for hundreds of millions of years. In contrast, humans have been around only for hundreds of thousands of years.
2. Sea turtles have adaptations suited for survival in marine environments. Sea turtles spend almost all of their lives in the ocean, except when females go ashore to lay eggs.
3. Females return to the beach from where they hatched to lay their own eggs.
4. Turtles can easily reach 100 years of age if they are able to avoid threats such as predation, disease, being harvested (illegal in most countries!) and collisions with boats.
5. There are 7 species of sea turtles worldwide: green turtle (Chelonia mydas), Loggerhead (Caretta caretta), Leatherback (Dermochelys coriacia), Hawksbill (Eretmochelys imbricata), Olive Ridley (Lepidochelys kempii), Kemp's Ridley (Lepidochelys kempii) and Flatback (Natator depressa), which only occurs in Northern Australia.
6. Loggerhead, Green, and Hawksbill turtles are all commonly observed in Biscayne National Park waters. Leatherback turtles may also be observed, but this species is uncommon in the park.
7. 90% of US loggerhead turtles, and 100% of US green turtles nest in Florida.
8. The six species of sea turtles whose distributions include US waters are listed as "threatened" or "endangered" under the US Fish and Wildlife Services' Endangered Species Program.
Click here to return to the Sea Turtle Main Page, or click on one of the links below to learn more about sea turtles:
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.