Natal Project is a 1/4 San Andreas Island, with mountains and plains, but without trees, cliffs, etc, only the base terrain. Why? because the reason of this project is help the new users in the map creation, to put your own objects and test there in the Natal Island. It gives you a good environment, consider the project Natal a playground or sandbox.
Big thanks to Steve-M for her main.scm and water.dat from map cleaner, I only edited some details for my mod, thank you all man.