Bad weather delays the mission. During this time, 2 Dutch ships inform Drake about Spain's war fleet in Cadiz harbor.
Drake's fleet arrives in Cadiz on Apr 19th. He sails into the harbor, avoiding its forts and guns.
Over 2 days, Drake loots, burns, or sinks an estimated 30 Spanish ships.
The fleet then sails north, destroying ships carrying materials for barrels - were intended to store the Spanish Armada's food supplies.
Finally, Drake sails to the Azores, where his fleet captures a Spanish treasure ship. He returns to England with £114,000 worth of stolen Spanish treasure.