San Diego is a coastal city located in southern California, known for its beautiful beaches and mild climate. It is the second-largest city in California and offers a variety of attractions, including Balboa Park, San Diego Zoo, and USS Midway Museum. The city has a diverse population and a rich cultural scene, with numerous festivals and events throughout the year. The economy of San Diego is driven by sectors such as military, tourism, and biotechnology. The city is home to several universities, including University of California, San Diego (UCSD), which contributes to its reputation as a center for research and innovation. San Diego's picturesque waterfront and vibrant neighborhoods make it a popular destination for both residents and visitors.