You won’t see sharks at Shark Valley. The name comes from the Shark River, also called the River of Grass, flowing through the area. Several species of shark swim up this river from the coast (about 45 miles south of Shark Valley) to give birth, though not at this particular spot. Young sharks (called pups), vulnerable to being eaten by adult sharks and other predators, gain strength in waters of the slough before heading out to sea.
The Shark Valley entrance to the national park is on U.S. 41 (Tamiami Trail), 25 miles west of Florida's Turnpike (SR 821) or 39 miles east of SR 29. Some GPS units don't recognize it. If asked for a cross street, use U.S. 41.