What is the closest canyon to San Diego?

Cuyamaca Canyon is a beautiful, rugged canyon located just east of San Diego, California. The canyon is home to a variety of plant and animal life, including several endangered species. Visitors to Cuyamaca Canyon can enjoy hiking, camping, fishing, and other outdoor activities. The canyon is also home to the Cuyamaca Rancho State Park, which offers a variety of educational programs and events.