Oceania encompasses the Australian continent and thousands of islands across Melanesia, Micronesia, and Polynesia. Its defining characteristics are geographical isolation and unique ecosystems. These range from the continent's vast inland wilderness and coral reefs to the volcanic peaks and emerald lagoons of small island nations. In Oceania, travelers typically visit cities like Sydney, Melbourne, Auckland, and Nadi. Australia and New Zealand are world-renowned for their spectacular landscapes, with the Great Barrier Reef and Southern Alps offering outdoor adventure experiences. Meanwhile, island destinations such as Fiji, French Polynesia, and the Cook Islands are celebrated for their stunning beaches and distinctive indigenous cultures. Countless travelers come seeking encounters with the traditional cultures of Australia's Aboriginal peoples and New Zealand's Māori, or to explore remote regions like Papua New Guinea.