Cape San Blas, Florida location (top) – Hurricane Katrina left most of Cape San Blas's beaches severely damaged. The south point has experienced the most extreme erosion where the lighthouses have been historically located. Note in the background, the fortified main road can be seen running out into the water
Cape San Blas is part of a peninsula in Gulf County, Florida, extending westward from the mainland of Florida, separating St. Joseph Bay to the north from the Gulf of Mexico to the south. It is fifty-nine miles southeast of Panama City. The St. Joseph Peninsula extends northward from the west end of Cape San Blas. It is approximately 10 miles (16 km) south-southwest of the town of Port St. Joe, located at coordinates 29°39′49″N 85°21′20″W / 29.66361°N 85.35556°W.