Oceania contains a wide variety of landforms, with most of the significant ones located in the countries of Australia, New Zealand and Papua New Guinea. And because most of the islands of Oceania are small in size (mere dots on the map), it's impossible for us to show their individual landforms on a single and readable map.
Many of those small island are remnants of ancient volcanic activity, or coral atolls that encircles a lagoon partially or completely. Few have rivers of any size, and for that matter, lakes. So, here we show and describe Australia's recognized landforms, and for the other countries, dependencies and territories, please access them individually on this map.