Next day, the admiral sent some people on shore to look after these natives, but they could not travel above half a league from the shore on account of the thickness of the trees and bushes, and because all that coast for two leagues up the country, where the hills and mountains begin, is boggy and marshy, so that they only saw a few footsteps of fishermen on the shore, and abundance of cranes like those of Spain but larger. Having sailed about ten leagues farther westwards, they saw some houses on the shore, whence some canoes came off with water, and such food as the Indians use, and for which they were well paid. The admiral caused one of those Indians to be detained, telling him and the rest, by means of an interpreter, that he would freely permit him to go home as soon as he had given him an account of the country and some directions for the voyage. This Indian assured the admiral that Cuba was an island, and that the king or cacique of the western part of it never spoke to any of his subjects but by signs, yet that all his orders were immediately obeyed; that all this coast was very low and full of small islands. This latter information was found to be too true; as next day, the 11th of June, the admiral was forced to have the ships towed over a flat where there was not a foot of water, and its whole breadth did not exceed two ships length[14]. Bearing up closer to Cuba, they saw turtles of vast bigness, and in such numbers that they covered the sea. At break of day, they saw such an enormous flock of sea crows as even darkened the sun, these were going from sea towards to the island, where they all alighted; besides these abundance of pigeons and other birds were seen; and the next day such immense swarms of butterflies, as even to darken the air, which lasted till night, when a heavy rain carried them all away.