This modification slightly diversifies the bottom of the ocean, and adds some corals that you can notice when flying over the ocean. Coral has been added in Los Santos, near Santa Maria Beach, in San Fierro, near the Gant Bridge, and on Ocean Flats Beach to a lesser extent.
Installation: move the files from the archive to ModLoader. Also, using any text editor, open the GTA.dat file (located in GTA San Andreas / DATA) and write these lines:
IDE modloader\Corais no oceano\oceano.IDE IPL modloader\Corais no oceano\oceano.IPL
COFILE 0 modloader\Corais no oceano\gta3img\seafloor.col