Creating a terrain

How do I create a terrain in unity?

in the menu bar under terrain click create terrain. :D

hope this helps

By reading the manual about how to create terrains.

I guess you want to read this part, as this describes how to create a terrain in unity.

A new Terrain can be created from Terrain->Create Terrain. This will add a Terrain to your Project and Hierarchy Views.

It contain other interesting topics such as how you can edit your terrain.