Hi. I know how to create some terrain with a trees and some mountains, but I dont know how to make it looks real… I mean, if I want some sharp rock, reef… If is there any tutorial how to make profesional terrain with modeling and texturing mountains etc. can you help me please? I thing, reef or sharp rock can I create using 3D models, but I dont have any experiences with it… So if anyone have, write please 
Hi Marshall
Well, there are lots of tutorials on the web, to make realistic looking terrains there are some tips that you can use(I’m not a good “terrain maker” myself), for specific form objects you will need a 3D modelling program like 3DS Max or Maya, have a look here: 3D Buzz - Platform Game Tutorial
3D Buzz is a great site with lots of video tutorials on modelling, animating, programming. Check the Artistic Design section of this link, this can have you some ideas on how to build a simple scenario.
Im using 3Ds max for some years, so I dont need modeling tutorials… I need tutorial, even write tutorial on terrain, some tips… I will check this site, thanks.