It was, however, a more difficult task than it looked. Had the water been smooth it would have been easy for Jack to swim across the tide to the spar before he was swept below it, but he found at once that it was impossible to swim fast, so buffeted and tossed was he by the sea, while he was almost smothered by the spray carried by the wind to the top of the waves. He trod water for a moment with his back to the wind, took a deep breath, and then dived again. When he came up he was delighted to see that he was as near as possible in the line of the spar, which was towing but a few yards from him. He ceased swimming, and a moment later the tide swept him down upon it.