On the 25th of May, D'Urville began the exploration of the Viti or Fiji Archipelago. At the outset he was so fortunate as to fall in with a native of Tonga who was living on the Fiji Islands for purposes of trade, and had previously visited Otaheite, New Zealand, and Australia. This man, as well as a Guam islander, proved most useful to the commander in furnishing him with the names of more than 200 islands belonging to this group, and in acquainting him beforehand with their position, and that of the reefs in their neighbourhood. At the same time, Gressier, the hydrographer, collected all the materials requisite for preparing a chart of the Fiji Islands.
At this station a sloop was put under orders to proceed to the island of Laguemba, where was an anchor which D'Urville would have been well pleased to obtain, as he had lost two of his own while at Tonga. On arrival at the island, Lottin, who was in command of the sloop, observed on the shore none but women and children; armed men, however, soon came running up, made the women leave the place, and were preparing to seize the sloop and make the sailors prisoners. Their intentions were too plain to leave room for any doubt on the subject, so Lottin at once gave orders to draw up the grapnel, and got away into the open sea before there was time for an encounter to take place.
During eighteen consecutive days, in the face of bad weather and a rough sea, the Astrolabe cruised through the Fiji Archipelago, surveyed the islands of Laguemba, Kandabou, Viti-Levou, Oumbenga Vatou Lele, Ounong Lebou, Malolo, and many others, giving special attention to the southern islands of the group, which up to that period had remained almost entirely unknown.
The population of this group, if we accept D'Urville's account, form a kind of transition between the copper-coloured, or the Polynesian, and the black or Melanesian races. Their strength and vigour are in proportion to their tall figures, and they make no secret of their cannibal propensities.
On the 11th of June the corvette set sail for the harbour of Carteret; surveyed one by one the islands of Erronan and Annatom, the Loyalty Islands, of which group D'Urville discovered the Chabrol and Halgan Islands, the little group of the Beaupie Islands, the Astrolabe reefs, all the more dangerous as they are thirty miles distant from the Beaupie Islands, and sixty from New Caledonia. The island of Huon, and the chain of reefs to the north of New Caledonia, were subsequently surveyed. From this point D'Urville reached the Louisiade Archipelago in six days, but the stormy weather there encountered determined him to abandon the course he had planned out, and not to pass through Torres Straits. He thought that an early examination of the southern coast of New Britain, and of the northern coast of New Guinea, would be the most conducive to the interests of science.
Rossel Island and Cape Deliverance were next sighted; and the vessel was steered for New Ireland, with a view to obtaining fresh supplies of wood and water. Arriving there on the 5th of July in such gloomy, rainy weather, that it was with no small difficulty that the entrance of the harbour of Carteret, where D'Entrecasteaux made a stay of eight days, was made out; whilst there the travellers received several visits from the score of natives, who seem to make up the total population of the place. They were creatures possessed of scarcely any intelligence, and quite destitute of curiosity about objects that they had not seen before. Neither did their appearance lead to the slightest prepossession in their favour. They wore no vestige of clothing; their skin was black and their hair woolly; and the partition of the nostrils had a sharp bone thrust through by way of ornament. The only object that they showed any eagerness to possess was iron, but they could not be made to understand that it was only to be given in exchange for fruits or pigs. Their expression was one of sullen defiance, and they refused to guide any one whatever to their village. During the unprofitable stay of the corvette in this harbour, D'Urville had a serious attack of enteritis, from which he suffered much for several days.
On the 19th July the Astrolabe went to sea again and coasted the northern side of New Britain, the object of this cruise was frustrated by rainy and hazy weather. Continual squalls and heavy showers compelled the vessel to put off again as soon as it had succeeded in nearing the land. His experience on this coast D'Urville thus describes:—"One who has not had, as we have, a practical acquaintance with these seas, is unable to form any adequate conception of these incredible rains. Moreover, to obtain a just estimate of the cares and anxieties which a voyage like ours entails, there must be a liability to the call of duties similar to those which we had to discharge. It was very seldom that our horizon lay much beyond the distance of 200 yards, and our observations could not possibly be other than uncertain, when our own true position was doubtful. Altogether, the whole of our work upon New Britain, in spite of the unheard of hardships that fell to our lot and the risks which the Astrolabe had to run, cannot be put in comparison for a moment, as respects accuracy, with the other surveys of the expedition."
As it was impracticable to fall back upon the route by the St. George's Channel, D'Urville had to pass through Dampier's Strait, the southern entrance to which is all but entirely closed by a chain of reefs, which were grazed more than once by the Astrolabe.
The charming prospect of the western coast of New Britain excited intense admiration both in Dampier and D'Entrecasteaux; an enthusiasm fully shared by D'Urville. A safe roadstead enclosed by land forming a semicircle, forests whose dark foliage contrasted with the golden colour of the ripening fields, the whole surmounted by the lofty peaks of Mount Gloucester, and this variety still further enhanced by the undulating outlines of Rook Island, are the chief features of the picture here presented by the coast of New Britain.