Using a Private Vehicle
With an access route from Manila – Batangas City, one can just take the South Luzon Expressway (SLEX) all the way to Southern Tagalog Arterial Road Tollway (STAR Toll) and take the exit to Batangas City.
Here are the maps and driving directions for two routes from STAR Toll: 1) through the National Road and 2) through the Diversion Road.