Sometimes a poorly colored map makes it difficult to distinguish land and water. What if they were reversed? "Swap dirt and water" and you get Inversia.
There are still Andes Mountains and a trench along the west coast of South America but reversed. The Great Lakes have become the Great Isles. Hawaii and the Azores are Seas and the Mariana Trench is now the world's highest mountain range. The web page is full of well thought out descriptions of the life, climate and ecology of Inversia. Enjoying exploring!