San Diego is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.3 million, it is the eighth-most populous city in the United States and the second-most populous in the state of California. San Diego is the seat of San Diego County, which has a population of nearly 3.3 million. It is known for its mild year-round Mediterranean climate, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center.
AdFind the top-rated and best-reviewed tours and activities in SanDiego for 2025. Lose the printer. Conveniently download, store, and present tickets on your mobile device.
AdSanDiego. Find your stay with easy booking and personalized search filters. Simple searching, easy booking, better value hotels. Get what you need with KAYAK.