  Soldier Key Soldier Key  Soldier Key Soldier Key (North Atlantic) | |
| Geography | |
|---|---|
| Location | Atlantic Ocean |
| Coordinates | 25°35′25″N 80°09′40″W / 25.590214°N 80.161035°W |
| Administration | |
| State | Florida |
| County | Miami-Dade |
Soldier Key is an island in Biscayne National Park in Miami-Dade County, Florida. It is located between Biscayne Bay and the Atlantic Ocean, about three miles north of the Ragged Keys, five miles south of Cape Florida on Key Biscayne, seven-and-a-half miles east of the mainland and three miles west of Fowey Rocks. It lies on the Safety Valve, a sand bar that separates Biscayne Bay from the Atlantic Ocean and moderates storm surges into the bay.