The only thing to do was to go back along the river bank to the place from which they had started, so they set out. At first the way was easy, with smooth banks of sand to walk on, but after a time they came to the forest, and found it very hard indeed to make their way through the bushes and trailing vines. When night came, they were tired out, and afraid, too, because they heard the cries and grunts of many animals in the dense woods all about them. Without knowing why, the two boys did as their ancestors had done, and climbing into the forks of a great tree, spent the night safe from harm. In the morning they resumed their journey, and this time, when they tried the water of the river, they found that it was only a little salt, and they were able to drink it and quench their thirst. When the middle of the afternoon arrived, they saw the hills from which they had come rising against the sky to their left, and leaving the banks of the river they set out toward the higher country. Several times they thought they had lost their way, but they kept on, and at last saw the surface of the great marsh stretching out before them. From here on, they had no trouble, and on the second night they reached the entrance to the valley. They were very tired, and hungry too, for the turtle meat they had brought along was all eaten up, but Ni-Va managed to spear some small fish along the edge of the marsh, so that their stomachs were not quite empty when they finally got home. When they told their friends in the valley about the great water they had seen, stretching as far as their eyes could reach, the others would not believe them, and even the shells they had brought back did not convince the cave people that there could be a stream or river as big as that. Tul and Ni-Va offered to guide a party to the Ocean and show them, but the others only laughed, and thought the boys were not telling the truth. They were quite satisfied, in the valley, they said, and did not care to go to a place where the water was not fit to drink, and there was no fire, and no caves in which to sleep. But Tul and Ni-Va made up their minds that some day they would go back to the great water, and see it again. The two boys were never tired of telling about their adventures, and were very proud of the necklaces they made of the shells Tul had brought back with him. They tried to make a log boat, like the one they had used to float down the great river, and because they could not find a log on the banks of the stream big enough to hold them, they got several smaller logs, and fastened them together with twisted ropes of grass, and in this way made a raft, and had great fun with it, riding down the swift-flowing stream that ran through the valley. The Sun, who was watching them, laughed. "Your little Men will never conquer the Ocean on a thing like that," he said, looking at the clumsy raft.