Oceania is a region consisting of numerous countries and territories, mostly islands, in the Pacific Ocean.
Tips for each country
The United Nations Statistics Division defines Oceania as following:
Australia and New Zealand
Australia, New Zealand, Norfolk Island
Fiji, New Caledonia, Papua New Guinea, Solomon Islands, Vanuatu
Guam, Kiribati, Marshall Islands, Micronesia, Nauru, Northern Mariana Islands, Palau
American Samoa, Cook Islands, French Polynesia, Niue, Pitcairn, Samoa, Tokelau, Tonga, Tuvalu, Wallis and Futuna Islands