日本語訳お願いします。
Going to the shore on the first morning of the vacation, Jerry stopped and looked at a wild and rocky bay, and then over to the crowded beach he knew so well from other years. His mother looked back at him.
“Are you tired of the usual beach, Jerry?”
“Oh, no!” he said quickly, but then said, “I’d like to look at those rocks down there.”
“Of course, if you like.”
Jerry watched his mother go, then ran straight into the water and began swimming. He was a good swimmer. He swam out over the gleaming sand and then he was in the real sea.
He saw some older, local boys — men, to him — sitting on the rocks. One smiled and waved. It was enough to make him feel welcome. In a minute, he had swum over and was on the rocks beside them. Then, as he watched, the biggest of the boys dived into the water, and did not come up. Jerry gave a cry of alarm, but after a long time the boy came up on the other side of a big dark rock, letting out a shout of victory. Immediately the rest of them dived and Jerry was alone. He counted the seconds they were under water: one, two, three… fifty… one hundred. At one hundred and sixty, one, then another, of the boys came up on the far side of the rock and Jerry understood that they had swum through some gap or hole in it. He knew then that he wanted to be like them. He watched as they swam away and then swam to shore himself.
Next day he swam back to the rocks. There was nobody else there. He looked at the great rock the boys had swum through. He could see no gap in it. He dived down to its base, again and again. It took a long time, but finally, while he was holding on to the base of the rock, he shot his feet out forward and they met no obstacle. He had found the hole.
In the days that followed, Jerry hurried to the rocks every morning and exercised his lungs as if everything, the whole of his life, depended on it.