gg_sand by EdwardR. Version 1.0.7.3 as of March 25, 2011. =)

To install, put these two files in :

Steam\Steamapps\You\Counter Strike Source\cstrike\maps\

You don't have to put the readme, though. But you can if you want. It won't malfunction =)

Thanks for downloading! Have a nice day! =) =D =P <3