Leaving New Zealand on the 18th of March, 1827, D'Urville steered for Tonga Tabou, identified to begin with the islands Curtis, Macaulay, and Sunday; endeavoured, but without success, to find the island of Vasquez de Mauzelle, and arrived off Namouka on the 16th of April. Two days later he made out Eoa; but before reaching Tonga Tabou he encountered a terrible storm which all but proved fatal to the Astrolabe. At Tonga Tabou he found some Europeans, who had been for many years settled on the island; from them he received much help in getting to understand the character of the natives. The government was in the hands of three chiefs, called Equis, who had shared all authority between them since the banishment of the Tonï Tonga, or spiritual chief, who had enjoyed immense influence. A Wesleyan mission was in existence at Tonga; but it could be seen at a glance that the Methodist clergy had not succeeded in acquiring any influence over the natives. Such converts as had been made were held in general contempt for their apostasy.

When the Astrolabe had reached the anchorage, after her fortunate escape from the perils from contrary winds, currents, and rocks, which had beset her course, she was at once positively overwhelmed with the offer of an incredible quantity of stores, fruits, vegetables, fowls, and pigs, which the natives were ready to dispose of for next to nothing. For equally low prices D'Urville was able to purchase, for the museum, specimens of the arms and native productions of the savages. Amongst them were some clubs, most of them made of casuarina wood, skilfully carved, or embossed in an artistic manner with mother-of-pearl or with whalebone. The custom of amputating a joint or two of the fingers or toes, to propitiate the Deity, was still observed, in the case of a near relative being dangerously ill.

From the 28th of April the natives had manifested none but the most friendly feelings; no single disturbance had occurred; but on the 9th of May, while D'Urville, with almost all his officers, went to pay a visit to one of the leading chiefs, named Palou, the reception accorded to them was marked by a most unusual reserve, altogether inconsistent with the noisy and enthusiastic demonstrations of the preceding days. The distrust evinced by the islanders aroused that of D'Urville, who, remembering how few were the men left on board the Astrolabe, felt considerable uneasiness. However, nothing unusual happened during his absence from the ship. But it was only the cowardice of Palou which had caused the failure of a conspiracy, aiming at nothing less than the massacre, at one blow, of the whole of the staff, after which there would have been no difficulty in prevailing over the crew, who were already more than half-disposed to adopt the easy mode of life of the islanders. Such at least was the conclusion the commander came to, and subsequent events showed that he was right.

These apprehensions determined D'Urville to leave Tonga Tabou as quickly as possible, and on the 13th every preparation was made to set sail on the following day. The apprentice Dudemaine was walking about on the large island, whilst the apprentice Faraquet, with nine men, was engaged on the small island, Pangaï Modou, in getting fresh water, or studying the tide, when Tahofa, one of the chiefs, with several other islanders, then on board the Astrolabe, gave a signal. The canoes pushed off at once and made for the shore. On trying to discover the cause of this sudden retreat, it was observed that the sailors on the island Pangaï Modou were being forcibly dragged off by the natives. D'Urville was about to fire off a cannon, when he decided that it would be safer to send a boat to shore. This boat took off the two sailors and the apprentice Dudemaine, but was fired upon when despatched shortly afterwards to set fire to the huts, and to try to capture some natives as hostages. One native was killed and several others were wounded, whilst a corporal of the marines received such severe bayonet wounds, that he died two hours later.

Attack from the natives of Tonga Tabou.

D'Urville's anxiety about the fate of his sailors, and of Faraquet, who was in command of them, knew no bounds. Nothing was left for him to do but to make an attack upon the sacred village of Mafanga, containing the tombs of several of the principal families. But on the following day a crowd of natives so skilfully surrounded the place with embankments and palisades, that it was impossible to hope to carry it by an attack. The corvette then drew nearer to the shore, and began to cannonade the village, without, however, doing any other damage than killing one of the natives. At length the difficulty of obtaining provisions, the rain, and the continual alarm in which the firing of the Frenchmen kept them, induced the islanders to offer terms of peace. They gave up the sailors, who had all been very well treated, made a present of pigs and bananas; and on the 24th of May the Astrolabe took her final departure from the Friendly Islands.

It was quite time indeed that this was done, for D'Urville's situation was untenable, and in a conversation with his boatswain he ascertained that not more than half a dozen of the sailors could be relied on; all the others were ready to go over to the side of the savages.

Tonga Tabou is of madreporic formation, with a thick covering of vegetable soil, favourable to an abundant growth of shrubs and trees. The cocoa-tree, the stem of which is slenderer than elsewhere, and the banana-tree here shoot up with wonderful rapidity and vigour. The aspect of the land is flat and monotonous, so that a journey of one or two miles will give as fair an impression of the country as a complete tour of the island. The number of the population who have the true Polynesian cast of countenance may be put down at about 7000. D'Urville says "they combine the most opposite qualities. They are generous, courteous, and hospitable, yet avaricious, insolent, and always thoroughly insincere. The most profuse demonstration of kindness and friendship may at any moment be interrupted by an act of outrage or robbery, should their cupidity or their self-respect be ever so slightly roused."

In intelligence the natives of Tonga are clearly far superior to those of Otaheite. The French travellers could not sufficiently admire the astonishing order in which the plantations of yams and bananas were kept, the excessive neatness of their dwellings, and the beauty of the garden-plots. They even knew something of the art of fortification, as D'Urville ascertained by an inspection of the fortified village of Hifo, defended with stout palisades, and surrounded by a trench between fifteen and twenty feet wide, and half filled with water.