They saw the waves unfurl half way up the cliffs.

There must be a monstrous surf there.
Dick Sand, after remaining on the forecastle to observe the coast, returned aft, and, without saying a word, he took the helm.
The wind was freshening all the time.

The schooner was soon only a mile from the shore.
Dick Sand then perceived a sort of little cove, into which he resolved to steer; but, before reaching it, he must cross a line of reefs, among which it would be difficult to follow a channel.

The surf indicated that the water was shallow everywhere.
At that moment Dingo, who was going backwards and forwards on the deck, dashed forward, and, looking at the land, gave some lamentable barks.
One would say that the dog recognized the coast, and that its instinct recalled some sad remembrance.
Negoro must have heard it, for an irresistible sentiment led him out of his cabin; and although he had reason to fear the dog, he came almost immediately to lean on the netting.
Very fortunately for him Dingo, whose sad barks were all the time being addressed to that land, did not perceive him.
Negoro looked at that furious surf, and that did not appear to frighten him.

Mrs.Weldon, who was looking at him, thought she saw his face redden a little, and that for an instant his features were contracted.
Then, did Negoro know this point of the continent where the winds were driving the "Pilgrim ?" At that moment Dick Sand left the wheel, which he gave back to old Tom.
For a last time he came to look at the cove, which gradually opened.
Then: "Mrs.Weldon," said he, in a firm voice, "I have no longer any hope of finding a harbor! Before half an hour, in spite of all my efforts, the 'Pilgrim' will be on the reefs! We must run aground! I shall not bring the ship into port! I am forced to lose her to save you! But, between your safety and hers, I do not hesitate!" "You have done all that depended on you, Dick ?" asked Mrs.Weldon.
"All," replied the young novice.
And at once he made his preparations for stranding the ship.
First of all, Mrs.Weldon, Jack, Cousin Benedict and Nan, must put on life-preservers.