SAND COVER SEAL candidates for basic underwater demolition cover themselves in sand during surf passage on Naval Amphibious Base Coronado, Calif, Sept. 2, 2015. Surf passage is part of the first phase of SEAL training. U.S. Navy photo by Petty Officer 1st Class Michael Russell SHARE: Download: Full Size (1.44 MB) Tags: BUDS, Mass Communication Specialiast 1st Class Michael Russell, CORONADO, Seal, All images Credit: U.S. Navy Petty Officer 1st Class Michael Russell VIRIN: 150902-N-LP538-061.JPG Photo Gallery