Magdalena Bay (Spanish: Bahía Magdalena) is a 50 km (31 mi) long bay in Comondú Municipality along the western coast of the Mexican state of Baja California Sur. It is protected from the Pacific Ocean by the unpopulated sandy barrier islands of Isla Magdalena and Isla Santa Margarita. Ecology. This bay is particularly noted for the seasonal migration of the California gray whales that come here during winter to calve. The bay is also popular for commercial and sports fishing. Nearby mangrove swamps provide sanctuaries for sea birds.
https://en.wikipedia.org/wiki/Magdalena_Bay