|Cabo San Antonio|
1837 map of western Cuba
showing Cabo San Antonio
|Offshore water bodies||Caribbean Sea|
Cape San Antonio (Spanish: Cabo San Antonio), is a cape which forms the western extremity of the Guanahacabibes Peninsula and the western extremity of Cuba. It extends into the Yucatán Channel, and is part of the municipality of Sandino, in Pinar del Río Province. According to the International Hydrographic Organization, it marks the division point between the Caribbean Sea to the south and Gulf of Mexico to the north.