I don't know of any better story than that of the 1715 fleet.
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The fleet had suffered many delays, and had been sitting idle for nearly two years. Pressure had been mounting for the fleet to sail. The Spanish crown was in dire need of money; so were merchants who had been unable to make their exotic goods available for sale on the European market. Under this tremendous pressure, Ubilla made the decision to start the long and perilous voyage back to the Old World, even though the hurricane season had long begun. This decision would prove to be fatal, for unknown to the Spaniards a tremendous and exceptionally powerful hurricane was brewing to the southeast of Cuba. The great treasure fleet of 1715 sailed from Havana harbor in the early morning of July 24[SUP]th[/SUP], a beautiful and calm day, with a gentle breeze to help the ships find the Florida Current which ran north and up the Straits of Florida. Slowly and smoothly the ships of Ubilla’s fleet gently followed the East coast of Florida, staying far enough away from the shore to take advantage of the Gulf Stream, and stay clear of the treacherous shoals and reef formations which fringed the Florida coast. For the first five days the voyage was uneventful with the weather remaining good and giving no indication whatsoever of the rapidly approaching killer storm. But on July 29[SUP]th[/SUP], long swells started to appear, coming from the southeast. The atmosphere became heavy with moisture with the sun shining brightly through the haze. A gentle breeze still blew and the sea was smooth, but the swells started to make the ship gently dip and roll. Experienced navigators, pilots, and old hands started to be concerned. They knew that these were the early signs of an impending tropical storm.
The storm was traveling north, almost due east of the convoy, but still many many miles away. The storm had reached alarming intensity with winds at the center of the storm now reaching one hundred miles per hour. By nightfall the hurricane had made a drastic change in course, suddenly veering directly to the west. On the morning of July 30[SUP]th[/SUP], along the east coast of Florida, just south of Cape Canaveral, winds had begun to pick up and by midday had increased to well over 20 knots, and the sea was rapidly building up. By late afternoon winds had increased to over thirty knots, and the waves were reaching twenty feet. Ubilla’s fleet was relentlessly driven closer and closer to shore. The Captain General gave the order that all ships head into the wind in order to stay well clear of the reef and shoals, but the attempt was marginally successful. The velocity of the wind kept increasing, and by midnight, the ships were barely under control. Around 4 a.m. on July 31[SUP]st[/SUP], the hurricane struck the doomed ships with all its might, driving one ship after another on the deadly jagged reefs. The ships broke up like wooden toys. Ubilla’s Capitana disintegrated, crushed on the reef like matchsticks. Almost all aboard were killed, including Captain General Ubilla. The entire fleet was lost, and of the some twenty five hundred persons aboard various ships, over one thousand perished. Contrary to previous accounts by various historians, there is no historical evidence to indicate that the Griffon survived the terrible storm, and we can assume that it was lost, as were the two other ships of the 1715 fleet, around the shoals of Cape Canaveral.
For those who had miraculously survived, the ordeal was just beginning. They were stranded in an inhospitable land, infested with disease-carrying mosquitoes, rattle snakes, wild animals, and hostile Indians, far from any settlement, without food, fresh water, or badly needed medical supplies.