Located in the city of Newport Beach, Santa Ana River County Beach is a half-mile long, wide, and the northernmost beach in the city. Also known as River Jetties, Santa Ana River County Beach is situated south of the Santa Ana River and is a well-known surfing and biking destination. Santa Ana River County Beach welcomes dogs on a leash before 10 am and after 4:30 pm – and offers paved bike paths and volleyball courts.