Because this planet is at least twice the size of earth, continents are much larger, and so are islands. That being said, it is made up of main continent, and several islands.

Mainland

This is the biggest piece of land, and the main continent. It is huge and sits in the middle of the ocean. It has a huge mountain range in the middle of it that separates the desert from the rest of the continent. It is where most dragons and humans live.

The Poles

The north and South poles both have landmass and ice. While most of is ice, there is land under all that. There are mountains at the poles, vast plains of snow, forests, and much more. Though its mostly all snow and ice due to being so far away from the equator.

Black Sand Island

This island is covered in black sand and dirt. Everything here is irradiated and has developed to withstand it now that the levels are okay enough to handle. The most magic can be found here. It is also the strongest magic, as this islands where it was all created.

The Tropics

A series of tropical islands. They hold dragon and humam civilizations. Many dragons that live here are very colourful and vocal. Though some do blend in with their colours.

Island of Death

This island is actually the sleeping ethereal god, Death. It holds a cult dedicated to the god. They eat his flesh in the caves below in order to get closer to their god. Several forests have been infected with magic sickness, though there is one forest that is fed by purified sparkle water.