"But how are we to get to that island?
It's a pity we didn't bring our boat around." "There are two islands of the circle in between," came from Sam.

"Why can't we swim from one to the next and get around that way ?" "We can try it, lad.

But we want to be careful.

There may be sharks around in these parts." "Oh, don't let the sharks eat you up!" cried Grace.
"We'll keep our eyes open, never fear," said Dick.
A vote was taken, and it was decided that Sam should remain with the girls, to protect them in case of unexpected danger, while Tom, Dick, and old Jerry should make their way as best they could to the wreck.
The old sailor and the two boys were soon off.

They tramped down the beach a short distance and then reached a coral reef leading to the next island.