The crust is the outermost layer of the Earth, and it's divided into two main types:

* Continental crust: This is the thicker, less dense crust that makes up the continents.

* Oceanic crust: This is the thinner, denser crust that makes up the ocean floor.

So, while continents are part of the continental crust, and oceans are part of the oceanic crust, both are located within the Earth's crust layer.