Owen returned on board with the captain. It was his last visit to the shore. Indeed, attractive as the country is in appearance, few would wish to visit that pestiferous region. The two frigates having been refitted, sailed together for a cruise through the Indian seas. Captain Stanhope's orders were to visit Amboyna, several of the Molucca islands, Banda Neira, and other places which had been lately captured from the Dutch. The castle of Belgica, the chief fort of Banda Neira, had been taken in an especially gallant manner the year before by Captain Cole, of the frigate "Caroline," and Captain Kenah, of the "Barracouta" sloop. Landing at night, during a violent storm, accompanied by Lieutenant Lyons and several other officers, they made their way to the rear of the citadel. Though discovered, scrambling up by means of scaling ladders, they forced their way in, and in a few minutes became masters of the castle. Very naturally the officers and crew of the "Sylvia" regretted that they had not been there to share in the honour of the achievement. Some months passed away in a satisfactory manner to Owen, as numerous places of interest were visited, especially the spice-producing islands, where he had an opportunity of seeing numberless objects of natural history. Birds of rare plumage, shells of magnificent size, tinted with the most beautiful colours, as well as curious animals, such as were to be seen in no other region. Owen, who was a fair swimmer, took every opportunity, when the ships were at anchor and bathing was possible, to improve himself in the art. Although others bathed with him, very few took as much pains as he did. His frequent companion on such occasions was John Langton, a master's mate, who, being older, was a superior swimmer, and seemed to take much pleasure in giving him instruction. They did their best to induce others to join them, but very few would take the trouble to learn to swim. "We never can tell what may happen," remarked Langton. "A time may come when you may earnestly wish that you had learnt to swim. A person who can do so may be the means of saving not only his own life but that of others." It was necessary, however, to be very careful, as many places in these seas swarmed with sharks and other marine creatures. They had always to select some lagoon, cut off from the ocean, or to keep a bright look-out when swimming along the shore, and never to venture far out. Owen, though still inferior to Langton, soon became an expert swimmer.