The GGNRA contains more endangered species than any other national park in continental North America. Come celebrate these species with the GGNRA Endangered Species Big Year for an Endangered Species Day Celebration! We'll have informational displays about the GGNRA's work to protect these endangered species and the special places they call home. We'll go on a naturalist-led hike to search for the endangered tidewater goby, a small, nest-building fish that calls the GGNRA's Rodeo Lagoon home! Free snacks and drinks will be provided. Sponsored by the GGNRA Endangered Species Big Year: http://www.ggnrabigyear.org.