A Coast Guard Air Station San Francisco MH-65 Dolphin helicopter flies pass the Golden Gate Bridge during a formation flight in San Francisco, April 15, 2019. Air Station San Francisco's primary missions include search and rescue, port, waterways, and coastal security, protecting living marine resources, enforcing federal and international laws and regulations and providing logistical support to other Coast Guard units. (U.S. Coast Guard photo by Petty Officer 2nd Class Jordan Akiyama.)