The Shark River is a major distributary of Lake Harney in the southwestern portion of Everglades National Park. It is located in Monroe County, Florida, United States. The river is entirely sea level. The mouth of the river is at Ponce de Leon Bay, part of the Gulf of Mexico. The river is only 9.5 miles (15.3 km) long.
Coordinates: 25°21′12″N 81°07′01″W / 25.3534516°N 81.1170205°W