Research vessel "Dmitry Mendeleev" in the Pacific Ocean. Conducting research work on the study of the ocean. Soviet scientists on the shore bearing the name of the Russian scientist - Miklouho Maclay, greet the Papuans. Life of the Papuans - residents of one of the villages. Scientists are conducting research on the Papuans: collecting data on anthropology. A visit by the Papuans to a Soviet ship. Types of Sydney: streets, squares. Fauna of Australia: kangaroos, koalas, giraffes. Arrival of members of the Soviet expedition to Lordhau Island. The flora of the island. The study of plants by botanists. Expedition to the islands of Western Samoa. Views of the capital of Western Samoa - Akia: the audience on the streets of the city, buildings. Life of the inhabitants of Western Samoa. House-museum of the writer R. Stevenson. R. Stevenson's grave. View of the coral islands. The work of divers underwater. The underwater world of the ocean. Nature on the coral islands. Life of the inhabitants of the islands.