No, Baja California is located south of California and is a part of Mexico.
because baja California is part of Mexico and in spanish (what Mexicans speak) baja means lower.
Whale watching. Sitting on a beach. Visiting a resort.
You could take a flight into Tijuana, Mexicali, La Paz or Los Cabos (the most important cities on the region) or you could drive from the US-Mexico border at San Diego, California into Mexico.
It's called 'California del Norte.'
Driving and Traveling in Baja California, Mexico
Checklist for Traveling to Baja California, Mexico
Whale Watching in Baja California, Mexico
Visit San Quentin in Baja California, Mexico