Miles of grassy windswept dunes and a virtually empty beach await you at this remarkable 57,000-acre park on a barrier island with 24 miles of undeveloped coastline spanning from New Smyrna to Titusville. The unspoiled area of hilly sand dunes, grassy marshes, and seashell-sprinkled beaches is a large part of NASA's buffer zone and is home to more than 1,000 species of plants and 300 species of birds and other animals. Surf and lagoon fishing are available, and a hiking trail leads to the top of an American Indian shell midden at Turtle Mound. For an additional charge, visitors can take a pontoon-boat tour ($20) or participate in the turtle-watch interpretive program ($14). Reservations are required. A visitor center is on Route A1A at Apollo Beach. Weekends are busy, and parts of the park are closed when mandated by NASA launch operations at the Kennedy Space Center, so call ahead.