Drake was constantly being pursued by the Spanish Navy. When he entered the mouth of San Francisco Bay he was looking for a safe place to make repairs to the Golden Hinde before the long voyage across the Pacific Ocean. He located a secluded cove along the San Quentin Peninsula where he moored his ship, offloaded the cargo and set-up camp. He had the Miwok build the breakwater to help conceal and protect his ship. Captains of sailing vessels were aware that running aground in uncharted waters was an extremely risky maneuver and to do so could result in the loss of their ships and perhaps the lives of their crew. Since "The Cove" was not visible from the mouth of San Francisco Bay, Drake knew that the Spanish were unlikely to take such a chance. Several Inca artifacts were discovered at The Cove and a shown immediately below. These included a jade carving, an Ica stone and a conglomerate Stone tool bearing the image of the Inca Queen Nefertiti.  

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