In view of the prevailing east wind in these regions, and the maze of reefs, cays and shoals extending far out to sea from the Mosquito Coast, the galleons, in making their course from Porto Bello to Havana, first sailed back to Cartagena upon the eastward coast eddy, so as to get well to windward of Nicaragua before attempting the passage through the Yucatan Channel.[22] The fleet anchored at Cartagena a second time for ten or twelve days, where it was rejoined by the patache of Margarita[23] and by the merchant ships which had been sent to trade in Terra-Firma. From Cartagena, too, the general sent dispatches to Spain and to Havana, giving the condition of the vessels, the state of trade, the day when he expected to sail, and the probable time of arrival.[24] For when the galleons were in the Indies all ports were closed by the Spaniards, for fear that precious information of the whereabouts of the fleet and of the value of its cargo might inconveniently leak out to their rivals. From Cartagena the course was north-west past Jamaica and the Caymans to the Isle of Pines, and thence round Capes Corrientes and San Antonio to Havana. The fleet generally required about eight days for the journey, and arrived at Havana late in the summer. Here the galleons refitted and revictualled, received tobacco, sugar, and other Cuban exports, and if not ordered to return with the Flota, sailed for Spain no later than the middle of September. The course for Spain was from Cuba through the Bahama Channel, north-east between the Virginian Capes and the Bermudas to about 38 deg., in order to recover the strong northerly winds, and then east to the Azores. In winter the galleons sometimes ran south of the Bermudas, and then slowly worked up to the higher latitude; but in this case they often either lost some ships on the Bermuda shoals, or to avoid these slipped too far south, were forced back into the West Indies and missed their voyage altogether.[25] At the Azores the general, falling in with his first intelligence from Spain, learned where on the coast of Europe or Africa he was to sight land; and finally, in the latter part of October or the beginning of November, he dropped anchor at San Lucar or in Cadiz harbour.