The verona_beach_island.rar file you have requested: Map Mods / Verona Beach Island - 165.6kb is not available. Perhaps try browsing all files for the game Grand Theft Auto: San Andreas and upload any files you want to share or are missing. This is the only information we could locate:
Here is a nice mod that will add an island near verona beach in Los Santos, there is a bridge connecting the island to the main land. Please note that it is highly recommended that you back up any files just in case you don't like this modification or it messes up your game.