After they had marched thus for about three days, keeping the lake on the north side of them, and always in view, at length, on the third day, in the evening, coming to a little hill, which gave them the prospect of the country for some length north-east, they saw plainly a river issuing out of the lake, and running first east, then bending to the south; it was also easy to perceive that this river, was at that time, much broader than its usual course, for that they could see a great many trees, which probably grew on the banks of the river, standing as it were, in the middle of the water, the banks being overflowed both ways very considerably. But, as they mounted the hill which they stood on, to greater height, they discovered farther north, at a distance of five or six miles, according to their account, a much larger river, which looked, compared to the first, rather like a sea than a river, which likewise issued out of the lake, and ran east-by-south towards the sea; which river they supposed to be in the same manner swelled with a land-water to a prodigious degree. This prospect brought them to a more serious consultation as to the measures they should take to proceed on their journey; and as they could easily see there was little or no use to be made of the rivers for their travelling, while they were thus above the ordinary banks, so that they could not know the proper channels, and also that the currents were exceeding swift, so they resolved to stock themselves with provisions, if possible, and continue their journey by land. To this purpose they first made it their business to catch some more guinacoes, or large sheep, which they knew would not only feed them, but also carry their luggage, which was still heavy and very troublesome to them, and yet absolutely necessary too. But all their endeavour was in vain, for though they saw several, and found that the country was pretty full of them, and some they killed, yet they could not take one alive by any means they could contrive. Among other creatures they shot for food were a few wild cows and bulls, and especially on the north side of the river, where they found great plenty. But the most surprising thing to them that they had yet met with, was still to come. They had descended from the hill where they at first discovered the smaller river, and where they had set up their tent, resolving to march on the lower grounds as near the river as they could, so as to be out of danger of the water, that they might find, if possible, some way over, to come at the great river, which they judged to be the stream most proper for their business.