If you have Bryce, which I guess you do since you are in this Forum it should be easy. Just select the ground plane and click edit and select waters and you select teh water you want and walla instant ocean. create a terrain and smooth it out and flatten the y scale enlarge so it covers teh bottom portion of your scene and walla instant beach once you apply desert material. If you don't have that then maybe you could do one in photoshop or something. good luck, Lilmikee