While Mr. Mariner was at the Tonga Islands, he took part in an amusement which derived its origin from a love legend. He accompanied Finow to a small island called Hoonga, and, on walking down to the sea-shore, he saw his companions bathing near a great rock, and was startled to find that they one after the other dived into the water and did not come up again. Just as the last was preparing to dive, he asked the meaning of this astonishing proceeding, and was told to follow, and he would be taken to a place where he had never been before, and where Finow and his Matabooles were then assembled.

He then dived into the water, and Mr. Mariner followed him, guided by the light reflected from his heels. Passing through an aperture in the base of the rock which has just been mentioned, he rose to the surface of the water and found himself in a cavern. At first he could see nothing, but he could distinguish the voices of Finow and his other friends; and after a while became so accustomed to the dim light that he could just manage to see that he was in a vast stalactitic cavern.

As the only light which entered it was reflected from the bottom of the water, and exceedingly dim, he dived out again, wrapped up his loaded pistol in a quantity of gnatoo, directed a servant to prepare a torch in the same manner, and dived back again By means of the pistol he lighted the torch, and probably for the first time since it was formed, the cavern was illuminated. It was about forty feet wide and as many high, and ran off at one side into two galleries. Its roof was covered with stalactites hanging in the fantastic patterns which they are apt to assume. The story which was told him respecting the discovery of this cavern is quite a romance of savage life.

Many years ago a young chief of Vavaoo discovered the cavern by accident, while diving after turtles, but took care to keep the discovery to himself, as he thought he should find it useful in case he was detected in a plot against the principal chief of the island, a man of cruel and tyrannous disposition. Another chief had the same intentions, and was organizing a revolt, when he was betrayed by one of his own followers, and condemned to be drowned, together with the whole of his family. It so happened that he had a very beautiful daughter whom the young chief had long loved, but to whom he dared not speak, knowing her to be betrothed to a man of higher rank than himself.

When, however, he found that her life was to be sacrificed, he contrived to make his way to her in the evening, told her of the fate which was in reserve for her, and offered to save her. The girl at once consented, and the two stole gently to the seaside, where a little canoe was drawn up. On their way to Hoonga the young chief told the girl of this place of retreat, and as soon as the day broke took her into the cavern. He was not long in finding out that the affection was mutual, but that the fact of her being betrothed to another had caused her to avoid him.

She remained in this cavern for two months, during which her young husband brought her the finest mats and gnatoo, the best food, and everything which constitutes Tongan luxury. He was, however, forced to spend a considerable part of his time at Vavaoo, lest the tyrannical chief should suspect him, and he was naturally anxious to take his wife to some place where they could live together in safety.

Accordingly, he called together his subordinate chiefs and Matabooles, and told them to prepare for a voyage to the Fiji Islands, accompanied with their wives and families. This expedition was kept secret lest the tyrant should put a stop to it. Just as they started, one of the chiefs advised him to take a Tongan wife with him, but he declined to do so, saying that he should find one by the way. They took his reply for a joke, and set sail toward Hoonga. When they neared the shores of the island, he told his men to wait while he went into the sea to fetch a wife, and, leaping into the sea from the side of the canoe which was farthest from the shore, he dived and disappeared.

After waiting for a while the people began to be seriously alarmed, thinking that he must have met with some accident, or that a shark had caught him. Suddenly, while they were debating as to the best course to be pursued, he appeared on the surface of the water, accompanied by a beautiful young female, whom he took into the canoe. At first his people were terribly frightened, thinking that she was a goddess; but, when they recognized her features, they took her for an apparition, believing that she had been drowned together with the rest of her family. The young chief arrived safely at the Fiji Islands, where he lived for two years; and at the expiration of that time, hearing that the tyrant of Vavaoo was dead, he returned to his native island, bringing with him his strangely rescued wife.

The facts of this story show that the cave must have some opening which admits the outer air, as otherwise no one could have lived in it so long. Even granting that the time of the girl’s residence was exaggerated, Mr. Mariner found that the air was perfectly fresh and sweet after Finow and his friends had remained in it for several hours, and a torch had been burned in it besides.

The island in which this extraordinary cavern is found is rather venerated by the Tongans as being the origin of their group of islands. Tongaloa, the god of arts and inventions, let down a fishing-line from the sky into the sea, when he suddenly felt his hook caught. He hauled up his line, thinking that from the resistance he had caught a very large fish. It turned out, however, that the hook had got itself fixed in the bed of the sea, and as the god continued to haul he drew up the Tonga islands. They would have been much larger, only the line broke, and the islands were left imperfect.