The Gulf of California ( also known as the Sea of Cortez , Sea of Cortés or Vermilion Sea ; locally known in the Spanish language as Mar de Cortés or Mar Bermejo or Golfo de California ) is a body of water that separates the Baja California Peninsula from the Mexican mainland .
The Gulf of California ( also called Sea of Cortez or Sea of Cortés ; and nearby is known in the Spanish language as Mar de Cortés or Mar Bermejo or Golfo de California ) is an area of water that is in between the Baja California Peninsula and Mexican mainland .