China is a varied land and is filled with many types of landforms.

This is Beijing. It's capitol. Beijing is the most populous city

This is the East China Sea And reaches Japan.

This is the Huang Hang river (or yellow river) and it is yellow because of the loess from the gobi desert

The Gobi Desert. This desert is filled with a rich sand called loess. And that is what makes the yellow river "yellow"

This is the region of Guangxi (zhungzu). It borders Vietnam.

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This is the taklamakan desert.

This is the gulf of tonkin

This is the Yellow Sea and it is the marginal sea that borders Korea and part of china.

This is the South China Sea and is in the south of china (obviously)