Read it through once

The people of Sydney ought to be afraid of the sharks, but for some reason they do not seem to be. On Saturdays the young men go out in their boats, and sometimes the water is fairly covered with the little sails. A boat upsets now and then, by accident, a result of tumultuous skylarking; sometimes the boys upset their boat for fun—such as it is with sharks visibly waiting around for just such an occurrence. The young fellows scramble aboard whole—sometimes—not always. Tragedies have happened more than once. While I was in Sydney it was reported that a boy fell out of a boat in the mouth of the Paramatta river and screamed for help and a boy jumped overboard from another boat to save him from the assembling sharks; but the sharks made swift work with the lives of both.