The Prince Edward Fracture Zone (PEFZ) is one of the fracture zones located on the Southwest Indian Ridge in the Indian Ocean between Africa and Antarctica. The PEFZ is located west of Prince Edward Islands. The largest offset along the Southwest Indian Ridge (800 km (500 mi)) is located west of the PEFZ and east of the Du Toit Fracture Zone (45°S, 35°E; 53°S, 27°E). During the Late Cretaceous this offset was smaller than 250 km (160 mi). Antarctic Bottom Water flows north through the PEFZ.